This is my Aunt Elaine’s four-ingredient potato au gratin cup recipe, copied straight from her handwritten card dated 1958. She made these tidy little portions in a muffin tin for every bridge club meeting, because they were elegant enough for company but simple enough to pull together between hands.

4. Build the layers in the muffin tin

Now comes the fun part.

Start layering in each muffin cup:

1. A small slice or two of potato
2. A spoonful of cream
3. A sprinkle of cheddar
4. Repeat

Continue until each cup is slightly mounded above the rim. The potatoes will shrink as they bake, so don’t be shy.

Press lightly with the back of a spoon to help the cream settle between layers.

5. Add butter on top

Place a small dot of butter on each cup.

This is what gives the tops their golden, slightly crisp finish—almost like the edge of a traditional gratin, but in miniature form.

6. Bake until golden and bubbling

Bake for 40–50 minutes, or until:

• The tops are golden brown
• The cream is bubbling at the edges
• A knife slides easily through the center

If the tops brown too quickly, loosely cover with foil for the last 10–15 minutes.

7. Rest before serving

Let the muffin tin rest for at least 10 minutes before removing the cups.

This helps them firm up so they don’t collapse when lifted out.

Use a butter knife to gently loosen each one and lift them out carefully.

What you get

Each cup is a self-contained little gratin: crisp, creamy, and layered like a miniature potato terrine. The edges are slightly caramelized from the butter and cheese, while the center stays soft and rich.

They’re perfect warm, but surprisingly good at room temperature—which is exactly why Aunt Elaine loved serving them at bridge club. No reheating, no fuss, no mess on plates.

A small note on why it works

The beauty of this recipe isn’t complexity—it’s structure.

• The thin potato slices cook evenly and absorb cream.
• The cream binds everything into a soft, rich custard.
• The cheese adds depth and a savory crust.
• The muffin tin transforms a rustic dish into something elegant and portioned.

It’s a reminder that presentation doesn’t require more ingredients—just a different way of thinking about them.

If you ever make them, don’t be surprised if they disappear faster than expected. That’s usually what happened at Aunt Elaine’s bridge table too—right after someone said, “I’ll just take one.”