Preheat oven to 375 degrees F. Coat 12 muffin cups with cooking spray.Advertisement
Whisk all-purpose flour, whole-wheat flour, sugar, cinnamon, baking powder, baking soda and salt in a large bowl. Stir in parsnips and currants (or raisins). Whisk egg whites, egg, apple butter, oil and vanilla in a smaller bowl. Stir into dry ingredients just until moistened.
Spoon batter into prepared muffin cups; sprinkle muffin tops with nuts. Bake until tops spring back when lightly pressed, about 20 minutes.
DIY Muffin Cups: Make your next batch of muffins or cupcakes the ultimate grab-and-go treat by lining your tin with muffin liners. No liners? No problem. Use 5-inch squares of parchment paper, coat each muffin cup with cooking spray, and push each square into the cups using a small can or bottle, pressing the paper up the sides. (It's OK if some of the paper is sticking out over the rim.) Fill each cup as directed.
3 1/2 other carbohydrate, 1 fat