Preheat the oven to 350 degrees.
Place parchment paper onto a cookie sheet and set aside.
Using a standing mixer, cream together the butter, sugar, brown sugar, and shortening and mix until combined.
Add in the egg and mix until combined.
In a large bowl, using a whisk mix in the flour, baking powder and salt.
Gradually add in the flour mixture into the wet mixture until combined.
Using a ice cream scoop, scoop some cookie dough into your hands and roll into a ball.
Roll cookie dough ball into the sugar and then place onto the cookie sheet.
Repeat the steps for 11 more cookie dough balls.
Bake in the oven for 8-10 minutes.
Once pulled out of the oven, place cookies onto a wire rack to cool.
Let the cookies cool for a few minutes and then place Reese’s Peanut Butter Heart into the cookie.
Repeat steps with remaining dough.