Peanut Butter Cookie Dough Brownies

INGREDIENTS

x8 pan of brownies, baked and cooled (I used Ghirardelli Double Chocolate but you can use any homemade or boxed recipe you prefer)

1/4 stick

salted butter, at room temperature

1/4 cup

peanut butter

1/4 cup

sugar

1/2 cup

brown sugar

3 tbsp

milk

1 1/2 tsp

vanilla

1 cup

all purpose flour

Heaping 1/2 cup mini M&Ms