Easy Potato Au Gratin Cups (4-Ingredient Family Recipe)

There’s something special about recipes that have been passed down through generations, and these Potato Au Gratin Cups are a perfect example. Inspired by a handwritten family recipe from 1958, these individual potato cups transform a handful of simple ingredients into a comforting, elegant side dish that feels just as welcome at a holiday gathering as it does on a weeknight dinner table.

Made with thinly sliced potatoes, rich cream, a touch of onion, and plenty of cheddar cheese, each cup bakes into a golden, bubbly masterpiece with crispy edges and a creamy center. The individual portions make them easy to serve and perfect for entertaining, while their classic flavor never goes out of style.

Why You’ll Love These Potato Au Gratin Cups

  • Only 4 main ingredients
  • Easy to prepare ahead of time
  • Perfect for holidays, brunches, and family dinners
  • Crispy golden tops with creamy, tender potatoes inside
  • Convenient individual servings

Ingredients

For 12 Potato Cups

  • 2 pounds russet potatoes, peeled and thinly sliced
  • 1½ cups heavy cream
  • ¼ cup finely minced yellow onion
  • 2 cups shredded mild cheddar cheese, divided
  • 1 teaspoon kosher salt
  • ½ teaspoon black pepper
  • Butter or cooking oil for greasing the muffin tin

Instructions

Step 1: Prepare the Oven and Pan

Preheat your oven to 375°F (190°C).

Lightly grease a standard 12-cup muffin tin with butter or cooking oil, making sure each cup is thoroughly coated to prevent sticking.

Step 2: Slice the Potatoes

Peel the potatoes and slice them very thinly, about ⅛ inch thick or thinner. A mandoline slicer works especially well for creating uniform slices, but a sharp knife will also do the job.

Place the sliced potatoes in a large bowl while preparing the remaining ingredients.

Step 3: Make the Cream Mixture

In a small bowl or measuring cup, combine:

  • Heavy cream
  • Minced onion
  • Salt
  • Black pepper

Stir until well mixed. This simple seasoned cream will flavor the potatoes as they bake.

Step 4: Add the First Layer of Cheese

Divide 1 cup of the shredded cheddar cheese evenly among the 12 muffin cups.

The cheese will melt during baking and create a delicious golden crust around the edges.

Step 5: Layer the Potatoes

Arrange the potato slices inside each muffin cup, slightly overlapping and pressing them down gently as you build the layers.

Fill each cup nearly to the top while keeping the portions as even as possible.

Step 6: Add the Cream

Stir the cream mixture once more, then carefully spoon it over the potatoes.

Pour slowly so the cream works its way between the layers rather than spilling over the sides.

Step 7: Finish with Cheese

Sprinkle the remaining 1 cup of cheddar cheese evenly over the tops of the potato cups.

This final layer creates the irresistible golden, bubbly topping.

Step 8: Bake

Place the muffin tin on a baking sheet to catch any potential drips.

Bake for 35 to 45 minutes, or until:

  • The potatoes are fork-tender
  • The tops are golden brown
  • The cheese is bubbling

Step 9: Rest and Serve

Remove the pan from the oven and allow the potato cups to rest for about 10 minutes.

This resting period helps them hold their shape and makes removal easier.

Run a thin knife around each cup, then gently lift them out and transfer to a serving platter.

Serve warm.

Serving Suggestions

These potato au gratin cups pair beautifully with:

  • Roast chicken
  • Baked ham
  • Pork chops
  • Steak
  • Meatloaf

For balance, serve them alongside:

  • Roasted Brussels sprouts
  • Steamed green beans
  • Garden salad with vinaigrette
  • Roasted asparagus

They also make an excellent addition to holiday dinners, brunch buffets, and potluck gatherings.

Make-Ahead Tips

You can prepare these cups in advance and refrigerate them after baking.

To reheat:

  1. Cover loosely with foil.
  2. Warm in a 350°F (175°C) oven.
  3. Heat until hot throughout and bubbling.

They are also delicious served alongside scrambled eggs for breakfast or brunch.

Recipe Variations

Different Cheeses

While mild cheddar provides classic flavor, you can also try:

  • Colby cheese
  • Monterey Jack
  • Young Swiss cheese
  • Mild Gouda

Milder Onion Flavor

For a subtler onion taste, grate the onion instead of mincing it. The onion will blend almost completely into the cream.

Lighter Version

Substitute half-and-half for the heavy cream.

The texture will be slightly less rich, and the baking time may need to be extended by a few minutes.

Storage

Store leftovers in an airtight container in the refrigerator for up to 4 days.

Reheat in the oven or microwave until thoroughly heated before serving.

Helpful Tips for Success

  • Slice potatoes evenly for consistent cooking.
  • Grease the muffin tin generously.
  • Allow the cups to rest before removing them.
  • Use freshly shredded cheese for the best melting results.
  • Place the muffin tin on a baking sheet to catch bubbling cream.

Final Thoughts

These Potato Au Gratin Cups prove that simple ingredients can create something truly memorable. With their creamy layers, crispy golden edges, and individual presentation, they’re a timeless side dish that never fails to impress. Whether you’re preparing a holiday feast, hosting guests, or simply looking for a comforting family dinner side, these classic potato cups deliver rich flavor and old-fashioned charm in every bite.

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