Oven-Baked 4-Ingredient Potato Au Gratin Cups

These Oven-Baked 4-Ingredient Potato Au Gratin Cups are the kind of timeless comfort food recipe that never goes out of style. Inspired by a handwritten 1958 recipe card passed down through family gatherings and bridge club lunches, these individual potato cups deliver rich, creamy flavor with beautifully crisp golden edges in every bite.

Made with thinly sliced potatoes, real cream, onion, and plenty of melted cheddar cheese, these elegant little portions bake perfectly in a muffin tin for easy serving and impressive presentation. They’re cozy enough for weeknight dinners yet classic enough for holiday tables, brunch spreads, and family celebrations.

If you love old-fashioned recipes with simple ingredients and comforting flavor, these homemade potato au gratin cups are guaranteed to become a favorite side dish everyone requests again and again.

Why You’ll Love These Potato Au Gratin Cups

Only 4 simple ingredients
Classic vintage comfort food recipe
Perfect individual servings
Golden, cheesy, and creamy
Easy to make ahead and reheat
Perfect for holidays, brunch, or weeknight dinners

Ingredients

2 pounds russet potatoes, peeled and thinly sliced
1 1/2 cups heavy cream
1/4 cup finely minced yellow onion
2 cups shredded mild cheddar cheese, divided
1 teaspoon kosher salt
1/2 teaspoon black pepper
Butter or oil for greasing the muffin tin

How to Make Potato Au Gratin Cups

Step 1: Prepare the Muffin Tin

Preheat your oven to 375°F (190°C). Lightly grease a standard 12-cup muffin tin with butter or oil, making sure the bottoms and sides are well coated.

Step 2: Slice the Potatoes

Peel the potatoes and slice them very thinly, about 1/8 inch thick or thinner. A mandoline works well for even slices, but a sharp knife will also work.

Step 3: Make the Cream Mixture

In a small bowl, stir together the heavy cream, minced onion, salt, and black pepper until combined.

Step 4: Add the First Cheese Layer

Sprinkle half of the shredded cheddar cheese evenly into the bottoms of the muffin cups.

Step 5: Layer the Potatoes

Arrange the potato slices into each muffin cup, slightly fanning and layering them while gently pressing down to fit evenly.

Step 6: Pour Over the Cream

Slowly spoon the seasoned cream mixture over the potatoes, allowing the liquid to seep down between the layers.

Step 7: Top with Remaining Cheese

Sprinkle the remaining cheddar cheese evenly over the tops of all the potato cups.

Step 8: Bake Until Golden

Place the muffin tin on a baking sheet to catch any drips. Bake for 35 to 45 minutes, or until the potatoes are tender and the tops are deeply golden and bubbling.

Step 9: Rest and Serve

Let the potato cups rest in the muffin tin for at least 10 minutes before loosening the edges with a knife or spatula and carefully removing them.

Pro Tips for the Best Potato Au Gratin Cups

Slice the potatoes evenly so they cook at the same rate.
Grease the muffin tin generously for easier removal.
Allow the cups to rest before serving so they hold their shape.
Use freshly shredded cheese for smoother melting.
Place the muffin tin on a baking sheet to catch bubbling cream.

Easy Variations

Swap cheddar for Colby or Swiss cheese.
Use grated onion for a softer onion flavor.
Replace heavy cream with half-and-half for a lighter version.
Add a pinch of garlic powder or paprika for extra flavor.
Serve with chopped fresh parsley for color and freshness.

Serving Suggestions

These creamy potato au gratin cups pair perfectly with roast chicken, pork chops, steak, baked ham, or brunch eggs. Serve alongside green beans, roasted Brussels sprouts, or a crisp salad with vinaigrette to balance the richness.

For a vintage-inspired spread, arrange them on a platter with sliced ham, pickles, and fresh rolls for a cozy old-fashioned meal everyone will love.

Make-Ahead and Storage Tips

You can prepare these potato cups ahead of time and reheat them in the oven at 350°F until hot and bubbly. Store leftovers in an airtight container in the refrigerator for up to 3 days.

Reheat gently in the oven or microwave until warmed through before serving.

Final Thoughts

These Oven-Baked 4-Ingredient Potato Au Gratin Cups are everything a comforting side dish should be: creamy, cheesy, golden, and deeply satisfying. Their elegant individual portions make them perfect for entertaining, while the simple ingredients keep them practical for everyday cooking.

Whether you’re recreating a nostalgic family recipe or simply searching for the perfect potato side dish, these classic au gratin cups deliver timeless comfort and homemade flavor in every bite.