Side Dishes
This Jimmy's Harborside Delmonico potatoes recipe delivers the crispy, golden perfection that makes it a restaurant favorite—herb-infused with a vinegar-kissed edge that transforms simple potatoes into a showstopping side. The technique involves boiling, browning, and finishing with a tangy, aromatic crust that stays crisp even when sliced.
I first discovered this method while perfecting holiday sides, and it’s since become a staple in my kitchen for its foolproof results and elegant presentation.
The secret lies in the two-stage cooking process: first boiling the potatoes until tender, then browning them in butter until they develop a caramelized crust.
A splash of vinegar and fresh herbs at the end adds that signature tangy brightness and fragrant aroma that sets these apart from ordinary roasted potatoes. This method ensures every bite delivers both texture contrast and bold flavor, making it a restaurant-quality dish that’s surprisingly simple to recreate at home.
What you’ll end up with is a platter of golden, vinegar-kissed Delmonico potatoes with crispy edges and tender centers, infused with herbs that make every bite aromatic and satisfying. These potatoes pair beautifully with steak, seafood, or holiday roasts, elevating any meal from ordinary to extraordinary.
The best part? This recipe delivers professional results in just 45 minutes without requiring any special equipment beyond a large pot and baking sheet.
For extra flair, consider adding crispy bacon or melted cheese on top, or swap the herbs for rosemary or thyme to customize the flavor profile. Whether you’re hosting a dinner party or simply craving a restaurant-worthy side, this recipe is designed to impress.
Let’s get started on creating your own harborside-worthy Delmonico potatoes.
Ingredients for jimmy's harborside delmonico potatoes
Herb-infused potatoes with a vinegar-kissed crisp—just nine ingredients transform humble spuds into restaurant-worthy elegance.
| Ingredient | Amount | Notes |
|---|---|---|
| Russian Banana Potatoes 🥔 | 3 lb | Uniform size for even cooking |
| Unsalted Butter 🧈 | ¾ cup | Cold, cut into 1-inch cubes |
| Fresh Parsley 🌿 | ¼ cup | Chopped, stems removed |
| Fresh Chives 🌱 | 0.15 cup | Finely chopped, mild flavor |
| White Wine Vinegar 🍷 | 2 tbsp | Balsamic alternative works too |
| Diamond Crystal Kosher Salt 🧂 | 2 tsp | Fine grain for even seasoning |
| Freshly Ground Black Pepper 🌶️ | ½ tsp | Cracked peppercorns preferred |
| Garlic Cloves 🧄 | 4 cloves | Thinly sliced, not minced |
| Heavy Cream 🥛 | ¼ cup | Optional, for extra richness |
| Extra-Virgin Olive Oil 🫒 | 1 tbsp | For final drizzle |
The Russian banana potatoes are non-negotiable here—their elongated shape and waxy texture hold up beautifully during the two-stage cooking process. Local farmers markets often carry them in fall/winter, but most grocery stores stock them year-round. Look for firm, unblemished tubers with smooth skin—avoid any with soft spots or sprouts. If you can't find Russian bananas, Yukon Golds are the next best option, though they'll brown slightly faster. The key is uniformity in size: cut any oddly shaped potatoes in half to ensure even cooking. For the herbs, fresh is mandatory—dried parsley and chives simply can't replicate that bright, aromatic finish. Whole Foods or high-end grocery stores carry pre-chopped herb blends, but I always buy whole stems and chop myself for superior freshness.
No white wine vinegar? Apple cider vinegar or lemon juice work in a pinch, though the flavor profile shifts slightly. The butter must be cold when added to the potatoes—this creates steam that helps develop that signature crispy crust. If you're watching fat content, substitute half the butter with olive oil, though the texture will be slightly less tender. For the garlic, thin slices (not minced) prevent burning during the browning stage. The heavy cream is optional but adds a luxurious finish—if omitting, increase the butter by 2 tbsp for moisture. Penzeys or McCormick offer high-quality dried alternatives if fresh herbs aren't available, though you'll need to reduce the amount to 1/3 of what's listed. The olive oil for finishing should be light and fruity—avoid strong, peppery varieties that could overpower the delicate herb flavors.
Potatoes can be peeled ahead and stored in cold water in the fridge for up to 24 hours to prevent browning. The herb mixture keeps fresh for 3 days in an airtight container in the refrigerator, though the parsley will wilt slightly. For make-ahead convenience, par-cook the potatoes through boiling (Step 1) and refrigerate them uncovered for 12 hours to dry the surface—this enhances crispiness when browning. The finished potatoes reheat beautifully: spread them on a baking sheet at 350°F for 10-15 minutes until warmed through. They also freeze well for up to 3 months if portioned in a single layer before freezing—simply reheat from frozen using the same method. For serving, arrange on a platter and drizzle with the reserved olive oil just before eating to maintain that restaurant-fresh presentation.
Why You'll Love This Recipe
- One-Pan Magic: I swear by this recipe when I don’t want to dirty more than one pan. The Russian Banana Potatoes roast right alongside the butter and herbs—no chopping, no fuss—just slide them in, roast, and finish with that bright vinegar splash. Honestly, it’s the kind of dish that makes me feel like I’ve earned my dinner.
- Creamy Crisp Perfection: That buttery crust on the outside? Chef’s kiss. The secret’s in the high heat and the way the potatoes caramelize while staying tender inside. The parsley and chives add a fresh bite that cuts through the richness—like a little vacation in every bite.
- Weeknight & Holiday Star: Between us, this is my go-to for lazy nights and impressing guests. Serve it alongside grilled fish or a steak, or pile it on toast for a fancy brunch. I’ve even made it for Thanksgiving leftovers—yes, really—and it still gets rave reviews.
- Budget-Friendly Luxury: Russian Banana Potatoes are a steal, and butter and herbs stretch far. The white wine vinegar adds brightness without costing a fortune. Plus, leftovers reheat beautifully—just toss them in the oven with a pat of butter, and nobody’ll know they’re not fresh. My secret weapon for feeding a crowd without breaking the bank.
Step-by-step instructions for jimmy's harborside Delmonico potatoes
Master this classic technique for potatoes with a golden crust and tender interior, elevated by bright herbs and vinegar's tangy kiss.
Prepare the Potatoes for Even Cooking
Begin by scrubbing the 3 lb Russian Banana Potatoes thoroughly under cold water to remove any dirt. Using a sharp chef's knife, cut them into 1½-inch thick slices—this ensures they cook uniformly without becoming mushy. For best results, select potatoes of similar size to maintain even doneness throughout the batch.
Arrange the sliced potatoes on a clean kitchen towel and pat them dry completely. Moisture on the surface prevents the butter from adhering properly and can lead to a less crisp exterior. Once dry, place the potatoes in a single layer on a baking sheet and refrigerate for 30 minutes to firm up slightly—this helps them hold their shape during roasting.
Create the Herb-Butter Compound
In a medium bowl, combine the 0.75 cup unsalted butter, 2 tsp Diamond Crystal kosher salt, and 0.5 tsp freshly ground black pepper. Use a fork to mash the butter into a rough paste, breaking it into small, even pieces. This texture ensures the butter melts evenly and coats every potato slice during roasting.
Next, finely chop the 0.25 cup fresh parsley and 0.15 cup fresh chives, removing any tough stems. Add these herbs to the butter mixture along with the 4 cloves sliced garlic. Gently fold everything together until the herbs are evenly distributed. The garlic should be thinly sliced—not minced—to prevent it from burning during the roasting process.
Season and Layer the Potatoes
Preheat your oven to 425°F while you prepare the potatoes. Arrange the chilled potato slices in a single layer on a rimmed baking sheet lined with parchment paper, leaving ½-inch gaps between each slice. This spacing allows hot air to circulate and ensures even browning.
Generously distribute the herb-butter mixture over the potatoes, pressing it gently into the surfaces. The butter should coat each slice evenly, with no dry spots remaining. For extra flavor, drizzle the 2 tbsp white wine vinegar evenly over the top. The acidity in the vinegar will react with the butter during roasting, creating a bright, crisp edge that's characteristic of Delmonico potatoes.
Roast Until Golden and Tender
Transfer the baking sheet to the preheated oven and roast for 35-40 minutes, flipping the potatoes halfway through cooking at the 20-minute mark. You're aiming for potatoes with a deep golden-brown crust on the edges and a fork-tender interior—they should yield slightly when pierced with a knife but still hold their shape.
During the last 5 minutes of roasting, watch closely for the edges to develop a crisp texture. If the potatoes begin to brown too quickly, tent the baking sheet loosely with aluminum foil to prevent over-browning. The vinegar will caramelize slightly, adding depth of flavor to the butter.
Finish with Cream and Olive Oil
Remove the potatoes from the oven and let them rest for 5 minutes on the baking sheet. This resting period allows the juices to redistribute, ensuring each bite is moist and flavorful. While they rest, stir the 0.25 cup heavy cream into the remaining herb-butter mixture in the bowl until smooth.
Drizzle the cream mixture evenly over the potatoes, followed by the 1 tbsp extra-virgin olive oil. The cream adds a velvety richness that balances the crisp edges, while the olive oil enhances the herbs' freshness. Serve immediately, garnished with an additional sprinkle of chopped parsley and chives for a pop of color and freshness.
Pro Tips For Making Jimmy'S Harborside Delmonico Potatoes
- CUT POTATOES UNIFORM: Russian Banana Potatoes cook unevenly if they’re lumpy—slice them all the same thickness, about ¼-inch thick. I used to eyeball it, but now I use a mandoline (or a sharp knife and a ruler) because even ⅛-inch variation means some pieces turn mushy while others stay raw.
- SALT THE POTATOES FIRST: Toss the sliced potatoes with salt and a splash of water before cooking—this draws out excess starch and keeps them from sticking. I learned this the hard way after scraping burnt potato bits off my pan for the third time.
- LOW AND SLOW AFTER BROWNING: Once the potatoes hit golden brown, crank the heat down to medium-low and cover the pan. This prevents burning while finishing them evenly—high heat after browning makes them crispy on the outside and raw inside.
- FINISH WITH COLD BUTTER: Fold in the unsalted butter while the potatoes are still hot, then let them sit off heat for 2 minutes. Adding cold butter at the end keeps it from melting into a greasy mess—your future self will thank you.
Make-ahead tips for leftovers
Prep Ahead for Crispy Perfection
Start by peeling and slicing the 3 lb Russian Banana Potatoes up to 24 hours ahead. Store them in a bowl of cold water in the fridge to prevent browning. When ready to cook, drain and pat completely dry—this step is crucial for that signature crispy crust.
I like to do this the night before so the potatoes are ready for the quick roasting process the next day. 💫
Herb-Butter Mixture Prep
Make the herb-butter compound in advance and store it in an airtight container in the fridge for up to 3 days. The flavors meld beautifully overnight, intensifying that aromatic punch.
When you're ready to cook, simply spread this pre-made mixture over the potatoes and roast as directed. This shortcut saves 10 minutes of prep time without sacrificing flavor.
Par-Cook for Maximum Crispiness
For restaurant-quality results, par-cook the potatoes by boiling them in salted water for 8-10 minutes until just tender. Drain well, then refrigerate uncovered for 12 hours to dry the surfaces completely.
This drying step is what creates that ultra-crispy exterior when you finally roast them. I discovered this trick after a particularly soggy batch of potatoes—never again!
Freezing for Future Feasts
These potatoes freeze beautifully for up to 3 months if you arrange them in a single layer on a baking sheet before transferring to a freezer bag. This prevents them from sticking together.
To reheat, spread them on a baking sheet and bake at 350°F for 20-25 minutes until warmed through. The texture holds up surprisingly well, though they won't be quite as crisp as fresh.
Vinegar Infusion Shortcut
Mix the 2 tbsp white wine vinegar with 1 tbsp olive oil ahead of time and store in a small jar. This pre-mixed vinegar oil can be drizzled over the potatoes just before roasting for that signature tangy brightness.
The acidity helps create that crispy edge while adding depth of flavor. Keep this mixture in the fridge for up to 1 week.
Make-Ahead Serving Suggestions
For holiday gatherings, assemble the potatoes completely (including the cream finish) up to 4 hours ahead and refrigerate. Reheat in the oven at 350°F for 15 minutes before serving.
The flavors continue to develop during this resting period, making them even more aromatic. I always make these ahead for Thanksgiving—they're a crowd-pleaser that requires zero last-minute stress. 🍽️
Nutrition facts
Frequently asked questions
Why do these Delmonico potatoes need to be sliced so thick?
The 1½-inch thick slices are key to achieving the perfect texture—tender centers with crispy edges. Thinner slices would overcook before developing that golden crust, while thicker slices might stay undercooked inside. This thickness also helps them hold their shape during roasting, preventing them from collapsing.
Can I substitute Yukon Golds for Russian Banana potatoes?
Yes, but with adjustments! Yukon Golds will brown faster, so reduce the roasting time by 5 minutes and watch closely after 30 minutes. Their waxy texture works well, though Russian Bananas' elongated shape makes them ideal for even cooking. If using Yukons, slice them slightly thinner (1¼-inch) to compensate.
What's the secret to getting that crispy crust?
Three things:
- Cold butter (creates steam for browning),
- Vinegar (acid helps caramelization), and
- Drying the potatoes (refrigerating them uncovered before roasting). The 425°F oven temp and ½-inch spacing between slices also ensure proper airflow for crisping.
How do I prevent soggy potatoes when reheating?
Reheat at 350°F for 10-15 minutes on a baking sheet (not covered) to restore crispiness. For extra insurance, toss them with 1 tsp olive oil before reheating. Microwaving is a no-go—it steams the potatoes instead of crisping them. The key is low-and-slow heat to revive the crust without overcooking.
Can I make these potatoes ahead for a dinner party?
Assemble them completely (including the cream finish) up to 4 hours ahead and refrigerate. Reheat at 350°F for 15 minutes before serving—the flavors actually improve during this resting period. For maximum crispiness, broil for 2 minutes at the end if needed. This is my go-to strategy for stress-free holiday entertaining!