Really, what goes together better than peanut butter and chocolate?

Cupcakes
6 Tbsp cocoa
1.5 c. sugar
1 tsp salt
1 tsp baking soda
2 c. flour
1 tsp vanilla
.75 c. vegetable oil
1 c. cold water
Sift together the cocoa, sugar, salt, baking soda and flour. Set aside. Using a mixer, mix the eggs, vanilla, oil and cold water until creamy. Slowly add the dry ingredients until well incorporated. Pour into 24 muffin cups and bake at 375 for 20 minutes.
Peanut Butter Frosting
.5 c. butter softened
1 c. peanut butter (smooth)
3 Tbsp milk
2 c. powdered sugar
Mix all ingredients until light and fluffy, you may need to add a tad more milk.