Halloween Chocolate Cookie Cake

Halloween Chocolate Cookie Cake brings everything wonderful about a chewy chocolate cookie into one shareable skillet dessert. The edges bake with a delicate bite, while the center stays rich, soft, and just a little fudgy. Semisweet chocolate chips add delicious pockets of chocolate without making the dough overly sweet.

The fun happens after baking! Bright candy corn and little orange, yellow, and white chocolates are pressed into the warm cookie, creating a playful Halloween finish without frosting or complicated decorating. Adding the candies afterward also helps preserve their cheerful colors and shapes.

The deep chocolate cookie makes every little pop of color stand out, especially when served right in its cast-iron skillet. Slice it into wedges for a Halloween party, a festive dessert table, or a cozy fall movie night. Simple ingredients, beautiful results, and plenty of chocolate in every bite.

Recipe Yield: 10 servings

INGREDIENTS

1 1/4 cups all-purpose flour
1/3 cup natural unsweetened cocoa powder
1/2 tsp baking soda
1 tsp unsalted butter, for greasing the skillet
1/2 cup unsalted butter, melted and slightly cooled
3/4 cup packed light brown sugar
1/4 cup granulated sugar
1 large egg
1 large egg yolk
2 tsp vanilla extract
1/2 tsp salt
3/4 cup semisweet chocolate chips, divided
1/3 cup mini candy-coated chocolates (orange, yellow, and white)
1/4 cup candy corn

INSTRUCTIONS

1. Preheat Oven:
Preheat the oven to 350°F with a rack in the center, and lightly grease a 10-inch cast-iron skillet with 1 tsp butter.

2. Combine Dry Ingredients:
Whisk together the flour, cocoa powder, baking soda, and salt in a medium bowl, breaking up any cocoa lumps.

3. Mix Butter and Sugars:
In a large bowl, whisk the melted, slightly cooled butter with both sugars until well combined.

4. Add Egg and Vanilla:
Whisk in the whole egg, egg yolk, and vanilla until smooth.

5. Make Cookie Dough:
Gently fold in the dry ingredients until just combined, then stir in 1/2 cup of the chocolate chips.

6. Fill Skillet:
Spread the thick dough evenly into the prepared skillet, then scatter the remaining 1/4 cup chocolate chips across the surface, leaving some dough visible.

7. Bake Cookie Cake:
Bake for 23–28 minutes, until the edges are set and the center looks matte and just set, with no wet dough visible; an instant-read thermometer should register approximately 195°F in the center.

8. Add Halloween Chocolates:
Place the skillet on a cooling rack for 8–10 minutes, then scatter the mini chocolates across the warm cookie, leaving little spaces between them. Gently press each into the surface using the back of a teaspoon.

9. Finish Decorating:
Arrange whole candy corn in the open spaces, varying their directions naturally. Gently press them into place with the back of the teaspoon, leaving some chocolate cookie visible.

10. Cool and Serve:
Let the cookie cake cool in the skillet for at least 45 minutes total before slicing into wedges and serving.

Helpful Tips to Perfect This Recipe

• Keep the Center Fudgy: Spoon and level the flour rather than packing it into the measuring cup. Avoid overmixing or overbaking, since the hot cast iron continues cooking the cookie after it leaves the oven.
• Decorate at the Right Temperature: Add the candies while the cookie is warm enough to hold them, but no longer piping hot. If they begin softening too much, pause for a few minutes before continuing. Keep hands away from the hot skillet.
• For Beautiful Slices: Allow the cookie cake to cool for at least 45 minutes before cutting. For firmer wedges, cool completely. Store covered at room temperature for up to 3 days.