Brownie + Chocolate Chip Cookie Thumbprint Cookies

INGREDIENTS

package (18.4 ounces) chocolate fudge brownie mix (do NOT prepare according to the mix; follow the instructions)

3/4 cup

unsalted butter (melted)

6 tbsp

unsalted butter (at room temperature)

1/2 cup

light brown sugar (packed)

3 oz

cream cheese (at room temperature)

4 tbsp

white sugar

2 tsp

vanilla extract

1/4 tsp

baking soda

1/4 tsp

salt

and 1/4 cups white flour

1 cup

chocolate chips (separated)

Optional Chocolate Drizzle: 1/4 cup chocolate chips + 1/2 teaspoon vegetable oil