In a mixing bowl, add the protein powder and almond flour or oat flour. Stir to combine evenly.
Add the nut butter, sweetener, vanilla extract, and a pinch of salt to the bowl.
Begin mixing with a spoon or spatula until the mixture starts to come together.
Slowly add milk, one tablespoon at a time, mixing after each addition until the dough reaches a thick, cookie dough-like consistency.
Once the base is smooth and cohesive, fold in the mini chocolate chips.
Taste the dough and adjust sweetness or flavor as needed by adding more sweetener or a touch more vanilla.
If you prefer a smoother texture, transfer the mixture to a food processor and pulse briefly, then stir in chocolate chips afterward.
Serve immediately or chill for 10–15 minutes for a firmer texture.