Preheat oven to 350F and line a baking sheet with parchment paper.
Cream the butter and Swerve in a food processor or stand mixer before adding the protein powder, flour, baking powder, and vanilla bean paste.
Continue mixing until a ball of dough forms. (I used 6 pulses in the food processor.)
Divide the dough into 8 42-gram pieces. Roll each piece between your palms into a smooth ball before pressing flat into cookie shapes. (You can spray your hands with a bit of cooking spray to prevent sticking.)
Sprinkle a pinch of granulated sugar substitute over the cookies before baking for 6-8 minutes. The cookies should be soft in the center and slightly crisp around the edges.
Notes
Each protein sugar cookie has 3 Smart Points.
Ingredient Notes
Protein cookie recipes can be unforgiving when it comes to substitutions. So, stick to the recipe as closely as possible for best results.
I used PEScience Select protein powder. You can use my affiliate discount code mason to save 15% on PEScience products.
You can use another granulated sugar substitute as long as it measures 1:1 for granulated sugar. I haven't tested the recipe with other sweeteners, though.
For light butter, I used Land O' Lakes with canola.