3/4 c or 1 1/2 sticks of butter (softened to room temperature is best), 1 1/2 cup sugar, 1 tsp vanilla, 1/2 cup cocoa powder, 2 eggs, 3 1/2 cup AP flour, 1 Tbsp baking powder, 1/2 tsp salt, 3/4 cup milk, 1/2 cup Lily's peanut butter chips
Cream together butter and sugar. Add vanilla, cocoa, and eggs. Mix well.
Combine dry ingredients, alternating with milk, to the first mixture. Add PB chips and mix well again.
I used my kitchen Aid stand mixer Bake at 350°F for 10-12 minutes.