Kelly, a busy mom and entrepreneur, likes to use baking instead of frying. This doughnut recipe is her favorite.
Preheat oven to 375F. Spray and flour six 31/4-in. cups of doughnut pan. Whisk together flour, baking powder, and salt; set aside.
Beat butter and sugar with a mixer on medium speed for 30 seconds. Beat in egg, buttermilk, and vanilla. Beat in flour mixture; fold in berries.
Spoon batter into pan, filling each cup 3/4 full. Bake 15 minutes, or until golden; let cool. Remove, dust with powdered sugar, if desired. Clean pan. Repeat with remaining batter to make 4 more doughnuts. Serve at room temperature or reheat. Doughnuts will keep for two days.