Clif Nut Butter Filled energy bars ares certified organic and combine a creamy nut butter inside a nutritious energy bar. Made in Canada with organic Canadian oats, Clif Nut Butter Filled energy bars are available in two new flavours launching this May: Banana Chocolate Peanut Butter and Caramel Chocolate Peanut Butter. Available this May at most grocery, convenience and natural retailers across Canada.