My 1 year old is currently transoniting to oat milk (cows milk allergy). He usually has 3 bottles a day a normal baby bottle. At the moment 4 oz formula, 3 oat milk. How do I transition him onto a beaker, so he doesn't rely on a baby bottle only a bed time. Im really struggling and since hes been drinking oat hes wanting more bottles. He can drink out of any bottle (straw, beaker, baby bottle)