Preheat the oven to 400 degrees F.
In a skillet over medium heat, lightly sauté the chopped apple and sprinkle in a little cinnamon. Cook until softened, about 3-5 minutes.
Combine the dry ingredients together in one bowl. In a separate bowl, combine the wet ingredients. Then, slowly fold the dry ingredients in to the wet adding in the apples.
Prepare the streusel topping by combining all ingredients together in a separate bowl from the doughnut batter.
Mist a doughnut pan with cooking spray, then divide the streusel topping between the six molds. Then top with the doughnut batter.
Bake for 10-12 minutes or until golden brown. The doughnuts should pop right out of the molds.
Try 13 Healthier Breakfast Recipes in our Baker's Dozen eCookbook, including these Apple Cinnamon Streusel Doughnuts.
image by Dana Shultz