Preheat your oven to 350 degrees FIn a large bowl or stand mixer, combine all the wet ingredients and sweetener (butter, egg, egg whites, pumpkin, stevia, orange zest, orange juice)Once the wet ingredients are mixed, add in all the dry ingredients (oat flour, baking powder, baking soda, salt, cinnamon, raisins)Mix until combined.Pour into greased muffin tins or use silicone liners.Bake for 17-18 minutes until cooked through.