Awesome Apple Muffins
1 cup white rice flour 1 egg, lightly beaten 1 tablespoon flax seed 1 teaspoon baking soda 1 teaspoon ground cinnamon 1 ½ tablespoons butter, melted 2 Gala apples - peeled, cored, and chopped ¼ cup cranberry juice ¼ cup steel cut oats ½ teaspoon arrowroot powder ½ teaspoon ground nutmeg ⅔ cup plain yogurt