Try this easy, Fat free/sugar free Carrot Cupcakes recipe.
Bakers frequently err by packing whole wheat flour directly from the canister into the measuring cup, which introduces excess dry matter and produces a dense, rubbery crumb. Whole wheat flour contains bran and germ that absorb liquids differently than refined white flour, requiring precise hydration management when fats are eliminated entirely. Using a combination of thick Greek yogurt and unsweetened applesauce replaces the traditional oil or butter while maintaining internal steam needed for a light texture.
When mixing the batter, incorporate the wet ingredients into the dry components using a spatula just until the flour disappears. Overmixing develops gluten networks that ruin the tenderness of low-fat baked goods. Fill the muffin cups nearly to the top because this batter lacks the chemical spreading power of traditional high-fat recipes. Bake at 350 degrees Fahrenheit for 15 to 20 minutes, removing the pan immediately when a wooden toothpick inserted into the center emerges clean.