Beverages
This Latter-Day Saints potato casserole recipe brings comfort and tradition to every ward potluck table—where cheesy pull-apart layers meet that signature vinegar-kissed crust.
The dish has been a staple in my family’s holiday gatherings since I first learned it from my great-aunt, who swore by the tangy secret that keeps the top crisp while the center stays creamy.
It’s the kind of recipe that feels like a warm embrace, especially when shared with neighbors and friends.
The magic lies in the balance: creamy mashed potatoes layered with shredded cheese and a tangy topping that’s both savory and slightly sweet. Unlike many casseroles, this one doesn’t require fancy ingredients—just simple staples like potatoes, cheese, and a touch of vinegar for that signature crispness.
The best part? It’s foolproof for beginners but still impressive enough for any gathering, whether it’s a Sunday dinner or a holiday feast.
By the time it emerges from the oven, you’ll have a golden, bubbling masterpiece with a crust that’s crispy enough to hold its shape while the inside remains tender and cheesy.
The aroma alone will have everyone gathering around the table, and the first bite delivers that perfect harmony of textures—creamy, crispy, and just a hint of tang. This is the kind of dish that disappears fast, so you’ll want to make extra.
Perfect for ward potlucks, family dinners, or even a cozy night in, this casserole adapts easily to dietary needs—just swap butter for oil if preferred. Let’s get started on creating a recipe that’s as much about tradition as it is about taste.
Ingredients for latter-day saints potato casserole
Simple staples transform into cheesy, vinegar-kissed comfort that feeds a crowd.
| Ingredient | Amount | Notes |
|---|---|---|
| Russet Potatoes 🥔 | 4 lbs | Peeled and boiled until tender |
| Unsalted Butter 🧈 | ¾ cup | Full-fat for creaminess (or dairy-free alternative) |
| Milk 🥛 | 1 ½ cups | Whole milk preferred for richness |
| Shredded Cheddar Cheese 🧀 | 3 cups | Sharp cheddar for best flavor |
| White Vinegar 💧 | ¼ cup | For that signature tangy crust |
| All-Purpose Flour 🌾 | ½ cup | For crispy topping texture |
| Baking Powder 🍞 | 1 tbsp | Ensures light, fluffy topping |
| Salt 🧂 | 1 ½ tsp | Kosher salt preferred |
| Black Pepper 🌶️ | ½ tsp | Freshly ground for best flavor |
| Garlic Powder 🧄 | 1 tsp | For subtle savory depth |
| Sour Cream 🥛 | ½ cup | Full-fat for creamy texture |
| Green Onions 🧅 | ¼ cup | Chopped for garnish (optional) |
The potatoes are the heart of this dish—Russet potatoes make the best mash because they’re fluffy and starchy. Grab a 5-pound bag from Costco if you’re feeding a crowd, or stick to 4 lbs for a smaller group. My great-aunt always said ‘no skin, no shame’—peeling them ensures a silky texture. For the butter, Land O’Lakes or Plugrá work perfectly, but if you’re avoiding dairy, Earth Balance butter alternative keeps the same creamy magic. The milk? Whole milk gives the best flavor, but 2% works in a pinch—just don’t use skim, or the casserole will taste flat.
No white vinegar? Apple cider vinegar works just as well—it’s what my aunt used when she couldn’t find the white stuff. The shredded cheese is non-negotiable for that melty goodness, but Colby Jack or Monterey Jack can join the cheddar if you want extra creaminess. For the topping, Diamond Crystal baking powder (not the double-acting kind) gives the best rise—it’s worth the trip to the baking aisle. Short on green onions? Chives or fresh parsley add color without changing the flavor. The garlic powder is optional but adds a subtle depth that makes this casserole feel extra special.
This casserole tastes even better the next day, so make it ahead if you’re hosting. Assemble it in a 9x13-inch baking dish (the standard for potlucks) and refrigerate for up to 24 hours before baking. The topping keeps its crisp for about 3 days covered in the fridge, but the inside stays creamy for 5 days. Freeze portions for up to 3 months—just thaw overnight in the fridge before reheating. Pro tip: Sprinkle a little paprika on top before baking for extra color and warmth.
Why You'll Love This Recipe
- No-Fuss Layers: I swear by this recipe because it’s literally just slicing potatoes and layering them—no fancy techniques. The vinegar trick keeps them tender without falling apart, and even my picky teenage nephew doesn’t complain.
- Cheesy Crispy Magic: That buttery, vinegar-kissed potato edge? Unreal. The cheddar melts into a golden blanket on top, and the milk makes it creamy without being heavy. Honestly, it’s the kind of dish that makes you want to take a second helping before anyone else even finishes theirs.
- Meal Prep MVP: Make it once, eat it three times. The leftovers reheat beautifully—just a quick zap in the microwave or oven—and it’s the perfect side for Sunday dinners, potlucks, or when you’re too tired to cook. (Yes, even on a Tuesday night.)
- Budget-Friendly Crowdpleaser: Russets and cheddar are cheap staples, and this recipe stretches to feed six for under $10. It’s the kind of dish that makes you feel like you’re serving a fancy meal without breaking the bank—or your grocery budget.
Step-by-step instructions for latter-day saints potato casserole
This cheesy, vinegar-kissed casserole delivers melt-in-your-mouth potatoes with a crispy, golden crust you'll want to pull apart.
Prepare the Potatoes for Maximum Creaminess
Peel the 4 lbs russet potatoes and cut them into ½-inch thick slices or small chunks. Place them in a large pot and cover with cold water by about 2 inches. Add 1.5 tsp salt to the water to help season the potatoes as they cook.
Bring to a boil over high heat, then reduce to medium-high and cook for 10-12 minutes until the potatoes are fork-tender but not falling apart. Drain thoroughly in a colander, then return them to the pot. While still hot, add the 1.5 cups milk and 0.5 cup sour cream. Stir gently to coat the potatoes in the creamy mixture. This step ensures your casserole will be rich and velvety rather than dry.
Create the Signature Vinegar-Kissed Topping
In a medium bowl, whisk together the 0.5 cup all-purpose flour, 1 tbsp baking powder, 1.5 tsp salt, 0.5 tsp black pepper, and 1 tsp garlic powder. Then stir in the 0.75 cup unsalted butter until the mixture resembles coarse crumbs with some pea-sized butter pieces remaining.
Add the 3 cups shredded cheddar cheese and mix until evenly distributed. The cheese should be fully coated with flour and butter for maximum flavor and texture. In a separate small bowl, whisk together the 0.25 cup white vinegar and 1.5 cups milk. This tangy mixture is what creates that signature crispy crust. Pour this liquid into the dry ingredients and stir just until combined—don't overmix or your topping will be tough instead of light and fluffy.
Layer and Bake to Golden Perfection
Preheat your oven to 350°F. Lightly grease a 9x13-inch baking dish. Spread half of the potato mixture evenly in the bottom of the dish. Sprinkle half of the chopped green onions over the potatoes if using. Repeat with the remaining potatoes and green onions, creating a second layer.
Spread the vinegar-kissed topping mixture evenly over the top layer of potatoes, pressing down gently with a spatula to ensure good contact. The topping should cover all the potatoes completely. Bake for 45-50 minutes until the edges are golden brown and the center is bubbling hot. Here's the thing—don't open the oven door during baking or the topping will collapse. The residual heat will finish cooking it once you remove it from the oven.
Rest and Serve with Maximum Satisfaction
Remove the casserole from the oven and let it rest for 10-15 minutes before serving. This resting period allows the juices to redistribute throughout the potatoes, ensuring each bite is creamy and flavorful. The crust will firm up slightly as it cools, creating that perfect pull-apart texture.
Cut into squares and serve immediately. The contrast of the creamy potatoes with the crispy, tangy crust is what makes this casserole legendary. Each bite delivers rich cheddar flavor, tender potatoes, and that satisfying crunch from the vinegar-kissed topping. Leftovers reheat beautifully—just cover with foil and warm in the oven at 350°F for 15-20 minutes until heated through.
Pro Tips For Making Latter-Day Saints Potato Casserole
- PRE-COOK THE POTATOES: Boil your Russets for 8-10 minutes in salted water until fork-tender, then drain and shock in ice water. This stops the cooking process and keeps them from turning mushy—trust me, your casserole’s texture will thank you later.
- DON’T SKIP THE VINEGAR: The white vinegar isn’t just for flavor—it’s the secret to that classic tangy kick. Mix it into the milk before adding it to the potatoes, or you’ll end up with a bland, watery sauce. A splash (about 1 tablespoon per cup of milk) makes all the difference.
- BAKE UNTIL BUBBLY: Cover the casserole with foil for the first 30 minutes, then uncover and bake until the cheese is golden and the edges are bubbling. I used to pull it out too soon—now I wait until the top cracks like a crusty pie, and the cheese pulls away cleanly.
- USE SHREDDED CHEESE DIRECTLY: Skip the pre-shredded cheese from the bag—it’s coated with anti-caking agents that make the top look dry and grainy. Buy a block of cheddar, shred it yourself, and pack it tightly into the casserole. The difference in melt and flavor is noticeable.
Essential equipment for this dish
Essential Baking Dish
A 9x13-inch baking dish is non-negotiable for this casserole—it’s the standard size for ward potlucks and ensures even baking. I recommend a glass dish (like Pyrex) because it distributes heat evenly and helps you monitor the golden crust without opening the oven door.
If you only have a metal dish, look for one with two thick sides—like CorningWare—to prevent warping. Avoid dark-colored dishes, which can make the crust brown too quickly. 🔥
Mixing Bowls
You’ll need at least two medium mixing bowls: one for the potato mixture and another for the vinegar-kissed topping. I prefer stainless steel bowls (like OXO Good Grips) because they’re durable and easy to clean, but any non-reactive bowl will work.
Avoid glass if you’re whisking vigorously—it can crack. For the topping, a wide, shallow bowl helps distribute the cheese and butter evenly. Pro tip: Line your bowls with parchment paper for easy cleanup. ✨
Measuring Tools
Precision matters in this recipe, especially for the vinegar-to-milk ratio in the topping. Invest in a stainless steel measuring cups set (like Farberware) for accurate dry ingredients, and a liquid measuring cup with clear markings for the vinegar and milk.
I also keep a small whisk (like OXO’s silicone-coated one) handy for combining the topping ingredients smoothly. Don’t eyeball the vinegar—it’s what gives this casserole its signature tang! 💧
Potato Tools
Peeling and cutting 4 lbs of russet potatoes efficiently requires the right tools. A swivel peeler (like Mercer Culinary’s) saves your hands from strain, and a sharp chef’s knife (I love Wüsthof’s 8-inch) makes quick work of chopping.
For boiling, a large pot with a lid (at least 6-quart capacity) ensures the potatoes cook evenly. After draining, a fine-mesh colander (like Chicago Metallic’s) prevents soggy potatoes. Trust me, these tools make prep a breeze. 🥔
Optional Extras
For garnishing or extra flavor, grab green onions, chives, or paprika. A microplane (like Microplane’s Zester/Grater) is perfect for finely grating garlic or zesting lemon if you want to add a bright note.
If you’re making this ahead, a clear plastic wrap or aluminum foil helps keep the topping fresh in the fridge. And for serving, a sharp spatula (like OXO’s Good Grips) helps slice through the crispy crust without tearing. 💡
Nutrition facts
Frequently asked questions
Why does this casserole need vinegar in the topping?
The white vinegar creates that signature crispy crust while balancing the richness of the cheese. It also adds a subtle tang that complements the creamy potatoes perfectly. Without it, the topping would be too flat and bland—it’s the secret to that iconic texture!
Can I make this casserole ahead of time?
Assemble it in your 9x13-inch dish and refrigerate for up to 24 hours before baking. The topping stays crisp for about 3 days covered in the fridge, and you can even freeze portions for 3 months. Just thaw overnight in the fridge before reheating.
What’s the best way to reheat leftovers?
Cover with foil and warm in the oven at 350°F for 15-20 minutes until heated through. The crust will firm up again, and the inside stays creamy. Microwaving works in a pinch, but it can make the topping soggy—so oven reheating is best!
Can I substitute dairy-free ingredients?
Yes! Use a dairy-free butter alternative (like Earth Balance) and swap milk for unsweetened almond or oat milk. For the cheese, try a sharp vegan cheddar. The vinegar-kissed topping will still crisp up beautifully, though the flavor will be slightly milder.
Why does the topping sometimes get soggy?
Opening the oven door too early or underbaking causes soggy topping. The residual heat finishes cooking it after removal, so avoid peeking! Also, ensure your potatoes are fully drained before mixing with milk. A 10-minute rest after baking helps the crust firm up properly.