Preheat oven to 350 degrees. Lightly spray a donut pan with non-stick spray.

In a large bowl use an electric mixer to combine sour cream, egg, extract, applesauce, and sugar until smooth.

Add remaining ingredients, mixing until just combined. Batter will be thick.

Spoon batter into the donut pan and bake for ~14 minutes, until golden brown. Allow to cool completely before glazing!

Combine powdered sugar and milk until a thick glaze forms. Dip each donut into the glaze to coat, place glazed donuts on wax paper to allow glaze to harden

Store in an airtight container- I would suggest placing wax paper between donuts if stacking