In a large mixing bowl, combine the rolled oats, vanilla whey protein powder, ground cinnamon, and chia seeds.

Stir well with a spoon or spatula until all the dry ingredients are evenly distributed.

Add the smooth natural peanut butter, raw honey, and vanilla extract to the bowl.

Stir vigorously to combine all ingredients until a thick, somewhat crumbly mixture forms.

Fold in the raisins or your preferred add-in, ensuring they are evenly distributed.

Slowly add the liquid, 1 tablespoon at a time, using your hands to mix until the mixture comes together into a sticky ball that holds its shape.

If the mixture is too dry, add a little more liquid; if too wet, add a tiny bit more oats or protein powder until the desired consistency is reached.

Roll the mixture into approximately 12 uniform balls, about 1-inch in diameter.

Place the rolled balls in an airtight container and refrigerate for at least 30 minutes to allow them to firm up.

Serve chilled and store any leftovers in the refrigerator until ready to eat.