In a large bowl, add oat flour, almond flour, cacao powder, whey protein and salt. Stir with spatula to combine and no longer lumpy.
Add milk, maple syrup and vanilla extract, stir. Mixture will be thick.
Add peanut butter and mix well to distribute evenly. Fold in chocolate chips.
Place mixture in the freezer for 5 minutes to firm up.
Using small trigger cookie scoop or a tablespoon, scoop mixture and roll into a ball. Repeat with remaining batter.
Notes
Store: Refrigerate in an airtight container for up to 1 week.
Freeze: First flash freeze on a baking sheet lined with parchment paper. After place in Ziploc plastic bag or airtight container, freeze for up to 3 months. Thaw on a counter for 10 minutes.