Cookie Cups with Fudge Filling

These Cookie Cups with Fudge Filling are a cozy, bite-sized dessert that balances nutty peanut butter cookie shells with a rich chocolate mascarpone fudge center. The cookie exterior bakes up tender with a slight chew and a buttery peanut aroma, while the fudge filling is silky, glossy, and luxuriously creamy. They are perfect for holiday cookie trays, after-dinner desserts, potlucks, or anytime you want an elegant little treat without a lot of fuss. If you enjoy classic peanut butter treats, you might also love the texture and flavor in our bakery peanut butter cookies. These cups are forgiving to make, and chilling the dough helps the cups keep their shape and bake evenly.

Ingredients

1/2 cup unsalted butter, softened,
Provides richness and helps the cookie cup hold its shape while baking.
1/2 cup packed light or dark brown sugar,
Adds moisture, a subtle molasses flavor, and chew to the cookie shell.
1/2 cup granulated sugar,
Contributes sweetness and helps create a lightly crisp edge.
1 large egg,
Binds the dough and adds structure.
2/3 cup creamy peanut butter,
Delivers peanut flavor and tender texture to the cookie cups.
1 teaspoon pure vanilla extract,
Enhances overall flavor and rounds the sweetness.
1 and 1/4 cups all-purpose flour,
The base that gives the cookies their body.
1/2 teaspoon baking soda,
A gentle leavening agent to lighten the cookie.
1/2 teaspoon salt,
Balances sweetness and enhances the peanut flavor.
8 ounces semi-sweet chocolate, chopped,
The chocolate base for the fudge filling; use good-quality chocolate for best texture.
1 teaspoon vegetable oil or coconut oil,
Helps the chocolate melt smoothly and stay glossy.
8 ounces mascarpone cheese,
Creates a creamy, slightly tangy texture in the fudge filling.
1/2 cup Heath toffee bits or chopped peanuts (optional),
Adds crunch and a toffee or nut finish on top of each filled cup.

Step-by-Step Instructions

In a large bowl, cream the softened butter with both sugars until light and creamy. Tip: Use room temperature butter so it creams easily and traps air for a tender cookie.
Add the egg and mix until fully combined and smooth.
Mix in the creamy peanut butter and the vanilla extract until the dough is even in color and texture.
Gradually add the all-purpose flour, baking soda, and salt to the wet ingredients, mixing just until incorporated. Cover the dough and chill it in the refrigerator for 1 hour to firm up.
Preheat your oven to 325°F (163°C) and grease mini muffin pans well so the cups release easily after baking.
After chilling, roll the dough into small balls, about 1 to 1 and 1/4 teaspoons each, and place them in the prepared mini muffin pan. Press each ball into the pan to form a cup shape with walls that will hold filling.
Bake the cookie cups at 325°F (163°C) for 14 to 15 minutes, until the edges are lightly golden. They should look set but not overly dark.
Remove from the oven and let the cups cool slightly in the pan. Press the centers again gently with a small spoon or the back of a tablespoon if they puffed up while baking.
Meanwhile, melt the chopped semi-sweet chocolate with the teaspoon of vegetable oil or coconut oil in a microwave-safe bowl in short bursts, stirring until smooth. Fold in the mascarpone cheese until the fudge filling is silky and uniform in texture.
Spoon or pipe the fudge filling into each cookie cup while the filling is still spreadable. Top each cup with Heath toffee bits or chopped peanuts if using. Chill briefly if you prefer a firmer filling. For more tips on cookie shaping and dough chilling, see this helpful cookie technique guide.

Recipe Details

Prep Time: 1 hour 20 minutes (includes 1 hour chilling)
Cook Time: 14 to 15 minutes per batch
Total Time: About 1 hour 35 minutes
Servings: Makes about 24 mini cookie cups
Calories: Approximately 240 kcal per cookie cup

Tips, Storage & Variations

Tip: Chill the dough for the full hour so the cups bake evenly and keep their shape. If you are short on time, chill the formed balls in the pan for 20 to 30 minutes before baking.
Baking pan tip: If your mini muffin pan is nonstick, a light spray of oil or a bit of softened butter in each cup helps the cookie shells release cleanly.
Storage: Store filled cookie cups in an airtight container in the refrigerator for up to 4 days. Let them come to room temperature for 10 to 15 minutes before serving for the best texture.
Freezing: Freeze baked, unfilled cookie shells in a single layer on a baking sheet until solid, then transfer to a sealed container for up to 3 months. Thaw, then fill with the fudge mixture before serving. Filled cups can be frozen for up to 1 month if wrapped tightly.
Flavor variations using only the listed ingredients:
- Skip the toffee bits and top with chopped peanuts for a pure peanut butter and chocolate finish.
- Stir a spoonful of peanut butter into the melted chocolate before folding in the mascarpone to deepen the peanut flavor.
- Use only chopped semi-sweet chocolate on top of the filled cups for a more chocolate-forward treat.
For alternative quick treats that share a simple ingredient approach, see this useful recipe for 3-ingredient sugar cookies and a no-bake option at 4-ingredient no-bake Christmas crunch cookies. Try pairing textures and techniques from our apple spice chocolate chip cookies for seasonal inspiration.

FAQ

How long do cookie cups keep their texture?
They stay best for 2 to 4 days refrigerated; beyond that the cookie shell can soften from the filling.
Can I make the cookie dough ahead of time?
Yes, you can make the dough up to 48 hours ahead and keep it refrigerated, or freeze it for up to 1 month.
Is mascarpone necessary for the fudge filling?
Mascarpone makes the filling silky and slightly tangy, but if you prefer a denser filling, reduce the mascarpone slightly while keeping the chocolate amount the same.
Do I need a mini muffin pan for this recipe?
A mini muffin pan gives the classic bite-sized shape. You could use a regular muffin pan for larger cups but adjust bake time.
Can I swap the peanut butter for another nut butter?
This recipe is written for creamy peanut butter only. Using another nut butter may change texture and flavor.

Conclusion

These Cookie Cups with Fudge Filling deliver a lovely balance of peanut butter cookie and creamy chocolate mascarpone fudge, perfect for sharing or a special treat at home. If you want a similar filled cookie idea and extra inspiration, check this delightful example of Fudge Filled Chocolate Chip Cookie Cups for presentation ideas. For another peanut butter and fudge variation, see the helpful technique guide at Peanut Butter Fudge Puddles (Cookie Cups). Give the recipe a try, share your results, and enjoy the cozy, chocolate-peanut butter goodness.