Preheat oven to 325 degrees and grease or line muffin tin.
Combine dry ingredients and orange zest in large bowl. Combine wet ingredients in medium bowl. Stir wet ingredients into dry ingredients, then fold in cranberries.
Using a large ice cream or cookie scoop, fill muffin cups ¾ full.
Bake for 20 - 25 minutes, until golden brown and toothpick inserted in center comes out clean. Cool on wire rack.