Preheat oven to 375 degrees.
Prepare cupcake pan by spraying lightly with cooking spray.
In a medium sized bowl, combine flour, baking powder and salt. Set aside.
In mixer, cream together butter and sugar.
Add eggs, 1 at a time, and vanilla extract.
Add peanut butter and stir until combined.
Add heavy cream and beat about 30 seconds. Mixture will be smooth and airy.
Gradually, with mixer on medium-low, pour flour mixture into batter. Stir until just combined. Stir in chocolate chips by hand.
Spoon batter into prepared cupcake cups, filling each cup completely.
Bake 18-20 minutes. Allow muffins to cool in pan before serving.