Place the cold whipping cream in a medium mixing bowl mixing at medium speed.
Add the vanilla. At the soft peak stage add the sugar substitute followed by the peanut butter.
Whip until combined.
Place 12 cupcake liners in a muffin tin. Set aside.
Using a plastic baggie or icing bag, pipe peanut butter mixture into liners.
Place into freezer for 2 hours or until frozen. Then place in a sealed container in the freezer for storage.
**Optional: Add a few dark chocolate chips to the top of the fat bombs before freezing.
Notes
The calories shown are based on the recipe making 12 pieces, with 1 serving being 1 piece. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate.