Name: Oreo-Stuffed Brownies
Ingredients: 1 (18.25 ounce) package brownie mix (such as Betty Crocker®); 2/3 cup vegetable oil; 2 eggs; 0.25 cup water; 12 chocolate sandwich cookies (such as Oreo®)

Ingredients

1 (18.25 ounce) package brownie mix (such as Betty Crocker®)
2/3 cup vegetable oil
2 eggs
0.25 cup water
12 chocolate sandwich cookies (such as Oreo®)

Steps

Preheat oven to 350 degrees F (175 degrees C). Grease 12 muffin cups or line with paper liners.
Mix brownie mix, oil, eggs, and water together in a bowl until smooth. Spoon about 1 tablespoon batter into each muffin cup. Place 1 cookie into each muffin cup and top with more batter.
Bake in the preheated oven until a toothpick inserted in the side of the brownie comes out clean, 20 to 23 minutes.