Copycat Crumbl Mallow Sandwich Cookie ft. Oreo
Ingredients
Chocolate Cookies
- ½ cup butter
- ¾ cup sugar
- 1 egg
- 1 tsp vanilla
- 1 cup flour
- ⅓ cup cocoa powder
- ½ tsp baking soda
- ½ tsp salt
Filling
- ½ cup butter (softened)
- 2 cups powdered sugar
- 1 tsp vanilla
- 2–3 tbsp heavy cream
- ½ cup crushed Oreo cookies
Instructions
1. Make cookie dough
Cream butter and sugar.
Add egg and vanilla.
Mix in flour, cocoa powder, baking soda, and salt.
2. Bake
Scoop and flatten cookies slightly.
Bake at 350°F for 9–11 minutes.
Cool completely.
3. Make filling
Beat butter until smooth.
Add powdered sugar, vanilla, and cream until fluffy.
Fold in crushed Oreos.
4. Assemble
Spread filling on one cookie and top with another to form a sandwich.
Tips
- Don’t overbake — keeps cookies soft
- Use fine Oreo crumbs for smoother filling
- Chill slightly before serving for clean structure