Cookie Cups with Fudge Filling

These peanut butter cookie cups filled with silky chocolate mascarpone fudge are a cozy, crowd-pleasing treat. Soft, slightly chewy peanut butter cookie shells cradle a rich, glossy fudge center that melts on the tongue. The aroma combines warm brown sugar and toasted peanut butter with the deep, sweet scent of melted semi-sweet chocolate. Texturally you get a tender cookie rim and a creamy, almost ganache-like filling that balances sweet and slightly salty notes. These are ideal for holiday cookie trays, bake sales, after-dinner treats, or when you want an impressive yet easy dessert for guests. If you like a simple buttery base in cookies, you might enjoy our basic butter cookies for more inspiration.

Ingredients

1/2 cup unsalted butter, softened
Soft butter helps create a tender, slightly crisp edge while keeping the center chewy.
1/2 cup packed light or dark brown sugar
Brown sugar adds moisture and a subtle molasses flavor that deepens the cookie profile.
1/2 cup granulated sugar
Granulated sugar gives sweetness and helps with slight crisping on the outer cookie.
1 large egg
Provides structure and lift; room temperature eggs incorporate more evenly.
2/3 cup creamy peanut butter
Gives the cookie its signature peanut flavor and a tender, rich texture.
1 teaspoon pure vanilla extract
Enhances flavor and rounds out the sweetness.
1 and 1/4 cups all-purpose flour
The main structure of the cookie; spoon and level for accurate measuring.
1/2 teaspoon baking soda
A small leavening boost for a light rise and gentle spread.
1/2 teaspoon salt
Balances sweetness and intensifies flavor.
8 ounces semi-sweet chocolate, chopped
Melts into a fudgy filling with a pleasant bittersweet edge.
1 teaspoon vegetable oil or coconut oil
Thins the melted chocolate for a smoother filling texture.
8 ounces mascarpone cheese
Adds creaminess and a soft, tangy note to the chocolate filling.
1/2 cup Heath toffee bits or chopped peanuts (optional)
Optional crunchy topping for texture contrast and extra toffee or nut flavor.

Step-by-Step Instructions

Cream the butter and both sugars together until light and creamy.
Tip: Use room temperature butter for quicker creaming and a lighter texture.
Add the egg and mix until combined. Then mix in the peanut butter and vanilla.
Mix until smooth and homogeneous, scraping the bowl as needed.
Gradually add the flour, baking soda, and salt until well mixed. Chill the dough for at least 1 hour.
Chilling firms the dough so the cups hold their shape during baking.
Preheat the oven to 325°F (163°C) and grease mini muffin pans.
Make sure pans are well greased to release the cookie cups easily.
Shape the dough into balls, place in the greased muffin pan, and indent the center to form a cup.
Use your thumb or the back of a small spoon to press a shallow well in each ball. For more help with shaping and handling cookie dough, see these chocolate chip cookies tips.
Bake for 14 to 15 minutes until lightly golden.
Watch the edges for light color rather than browning deeply.
Cool in the pan for 5 to 10 minutes, then reshape if necessary.
While still warm, the cups may need a gentle re-pressing to keep the indent defined.
Melt the chocolate with the oil and mix with mascarpone for the filling.
Melt the chocolate in short bursts in a microwave or in a warm double boiler, stir in oil, then fold in mascarpone until smooth.
Spoon the fudge filling into each cup and top with optional toppings. Store as desired.
Let the filling set slightly at room temperature, or chill briefly to firm up before serving.

Recipe Details

Prep Time: 1 hour 20 minutes (includes 1 hour chilling)
Cook Time: 14 to 15 minutes per batch
Total Time: Approximately 1 hour 35 minutes
Servings: About 24 cookie cups
Calories: Approximately 230 kcal per cookie cup

Tips, Storage & Variations

Tips
- For even cups, weigh dough portions or use a small cookie scoop.
- If the centers puff during baking, press them again immediately after removing from the oven.
- For smoother filling, warm the mascarpone slightly to room temperature before folding into the melted chocolate. For related texture tips consult the best chocolate crinkle cookies techniques.
Storage
- Store in an airtight container in the refrigerator for up to 5 days.
- Bring to room temperature before serving so the filling is creamy.
Freezing
- Freeze baked, unfilled cookie cups in a single layer on a tray, then transfer to a freezer bag for up to 2 months. Fill after thawing.
- Filled cookie cups can be frozen on a tray and then stored in an airtight container for up to 1 month.
Flavor Variations using only listed ingredients
- Toffee crunch: sprinkle the top with Heath toffee bits before the filling sets for extra crunch.
- Peanut crunch: swap the Heath bits for chopped peanuts for a toasted nut finish.
- Extra chocolate: stir slightly more chopped semi-sweet chocolate into the filling for a denser chocolate center.
- Creamier filling: add a touch more mascarpone to the chocolate for a silkier texture. For inspiration on brown sugar uses and swaps, see our brown sugar pop tart cookies notes.

FAQ

How long does the dough need to chill?
Chill the dough for at least 1 hour to make it easier to shape and to prevent excess spreading.
Can I make the cookie cups ahead of time?
Yes, bake the cups a day ahead and fill them the day you plan to serve, or freeze baked cups and fill after thawing.
What is the best way to melt the chocolate?
Melt in short microwave bursts or use a double boiler, stirring frequently to avoid scorching.
Can I use crunchy peanut butter instead of creamy?
Yes, crunchy peanut butter will add texture but will not change baking times.
Do I have to refrigerate the filled cookie cups?
It is best to refrigerate filled cups if not serving the same day to keep the mascarpone filling stable.

Conclusion

These Cookie Cups with Fudge Filling are a delightful mix of peanut butter comfort and luxurious chocolate mascarpone, perfect for gifting or a special dessert spread. If you want a look at a closely related spin on this idea, check the recipe for Fudge Filled Chocolate Chip Cookie Cups for inspiration. For a peanut butter focused variation and tips on filling cookie cups, you might also enjoy Peanut Butter Fudge Puddles (Cookie Cups). Give these a try, share with friends, and enjoy the warm smiles they bring.

Cookie Cups with Fudge Filling

Print Recipe

These peanut butter cookie cups filled with silky chocolate mascarpone fudge are a cozy, crowd-pleasing treat that balances sweet and slightly salty notes.

Author: amanda-lewis
Prep Time: 80 minutes
Cook Time: 15 minutes
Total Time: 95 minutes
Yield: 24 cookie cups 1x
Category: Dessert
Method: Baking
Cuisine: American
Diet: Vegetarian

Ingredients

Scale

1/2 cup unsalted butter, softened
1/2 cup packed light or dark brown sugar
1/2 cup granulated sugar
1 large egg
2/3 cup creamy peanut butter
1 teaspoon pure vanilla extract
1 and 1/4 cups all-purpose flour
1/2 teaspoon baking soda
1/2 teaspoon salt
8 ounces semi-sweet chocolate, chopped
1 teaspoon vegetable oil or coconut oil
8 ounces mascarpone cheese
1/2 cup Heath toffee bits or chopped peanuts (optional)

Instructions

Cream the butter and both sugars together until light and creamy.
Add the egg and mix until combined. Then mix in the peanut butter and vanilla.
Gradually add the flour, baking soda, and salt until well mixed. Chill the dough for at least 60 minutes.
Preheat the oven to 325°F (163°C) and grease mini muffin pans.
Shape the dough into balls, place in the greased muffin pan, and indent the center to form a cup.
Bake for 14 to 15 minutes until lightly golden.
Cool in the pan for 5 to 10 minutes, then reshape if necessary.
Melt the chocolate with the oil and mix with mascarpone for the filling.
Spoon the fudge filling into each cup and top with optional toppings. Store as desired.

Notes

For smoother filling, warm the mascarpone slightly to room temperature before folding into the melted chocolate. Store in an airtight container in the refrigerator for up to 5 days.