In a large bowl, stir together the almond butter and oil until well combined. Then stir in the liquid allulose and vanilla extract.
Add the protein powder, nut flour, cocoa powder, and salt. Mix until a cohesive dough forms and you can easily roll it into balls.
Stir in the chocolate chips and walnuts until well distributed.
Roll into 1 inch balls and refrigerate until firm. You should get 20 balls.
Notes
Sweetener notes: Liquid allulose helps the consistency of the balls, helping them stick together a little better. If you don't have any of that, use 1/4 cup powdered sweetener of choice and add a little water to the dough at the end to help it hold together. You will probably need 1 to 2 tablespoons of water. How to adjust: Depending on the choice of nut butter and protein powder, the consistency of the dough may differ. But it’s easy to adjust it as needed. If your dough is too stiff and won’t hold together, add a bit more oil. If the dough is too goopy and you can’t roll it into balls, work in a bit more flour.Storage Information: Store the balls in a covered container on the counter for up to 5 days, or in the fridge for up to 2 weeks. They can also be frozen for several months.