chocolate peanut butter chip cookies

Ingredients

• 1 box devil's food cake mix--i use duncan hines.
• 1 stick unsalted butter at room temperature
• 1 - large egg at room temperature
• 1/4 cup peanut butter ( creamy works best)
• 1 pinch salt
• 1-2 tablespoon milk
• 1 package peanut butter chips
• 1/4 cup sugar ( for decorating... i use colored sugar for holidays)
• 1 - tablespoon ( for scooping out cookie dough)