Apple and Peanut Butter Smoothie

small apples or 1 big apple 1 banana 1 tablespoon of peanut butter (or any other nut butter you like) 1 tablespoon of flaxseed (or golden linseed) 250 mL of milk (cow’s, rice, almond, I used oat milk) 1 heaping tablespoon of Further Food Collagen