Peanut Butter Sheet Cake with Peanut Butter

1 box yellow cake mix

 

4 eggs

 

1/2 c softened butter

 

1 c water

 

1/2 c creamy peanut butter…

 

FROSTING

 

3 c confectioners’ sugar

 

1/2 c creamy peanut butter

 

1/2 c softened butter

 

2+ tbsp milk

 

1 tsp pure vanilla extract