Mix flour, salt, and baking powder in a bowl. Set aside.
In a separate bowl beat sugar, peanut butter, oil, and egg with an electric mixer or danish dough whisk.
Add milk and mix.
Add dry ingredients and mix.
Stir in chocolate chips.
Preheat oven to 400 degrees. Line a muffin pan with muffin liners or grease with nonstick cooking spray.
Bake muffins for 15-18 minutes.
Allow muffins to sit in the pan for a few minutes before transferring them to a wire cooling rack.
