INGREDIENTS
1
box box brownie mix (9×13 pan size)
Water
Vegetable oil
Egg (as called for on brownie box)
1/2 cup
unsalted butter (softened)
3/4 cup
creamy peanut butter
1 tsp
vanilla
1/4 cup
brown sugar
1 3/4 cups
powdered sugar
Milk (as needed)
1 1/2 cups
milk chocolate chips
3
Tablespoons butter