This is a favorite recipe from our Doctor Yum's Preschool Food Adventure curriculum. This makes an easy after school snack and a healthy snack to share for a classroom party. If you are concerned about nut allergies, look for sunflower seed butter (which does not have tree nuts or peanuts, but make sure the label says the product is not made in a facility with nuts). Kids will enjoy spreading the nut butter or sunflower butter and smashing and sprinkling the whole grain cereal on their sandwich. Buy a variety of apples in different colors to encourage tasting new foods. Choose a whole grain cereal with no added sugar, since the apples themselves are so sweet.