Mashed Potato Doughnuts
Yield: approx. 3 dozen, depending on size
- 4-4 1/3 cups all-purpose
- 1 1/2 cups warm mashed potatoes*
- 1 1/4 cups sugar
- 3/4 cup buttermilk, lukewarm (it will appear curdled)
- 3 eggs
- 3 tablespoons unsalted butter, melted and cooled
- 2 1/2 teaspoons baking powder
- 2 teaspoons vanilla extract
- 1 teaspoon salt
- 1/2 teaspoon baking soda
- 1/2 teaspoon cinnamon
- vegetable oil, for frying
- 1 cup sugar
- cinnamon or nutmeg, optional
Adapted from 12tomatoes.com
[*Bake potatoes at 375∫ F for 50 minutes. Scoop out insides and pulse in food processor until broken down and blended.]
Combine 4 cups flour, baking powder, salt, baking soda and cinnamon in a large bowl. Whisk together and set aside.
In a large bowl or mixer, beat eggs and sugar together until lightened in color and ribbony.
Beat in buttermilk, butter and vanilla extract, then mix in mashed potatoes until just incorporated.
Add wet ingredients to the flour mixture and stir until a soft dough begins to come together.Note: if dough isn’t holding together, add more flour (little by little) until dough takes form.
Divide dough in half and wrap each half tightly in plastic wrap. Refrigerate for at least 2 hours, or overnight.
Once chilled, roll dough out on a lightly floured surface to about 1/2-inch thickness. Repeat with other half.
Pour 2-3 inches of oil into a large Dutch oven or heavy-bottomed pot and heat over medium-high heat until it reaches 360∫ F.Note: there should be at least 3 inches between bubbling oil and the top of Dutch oven.
Use a 3-inch doughnut cutter (or two circle cookie cutters of different sizes) to cut out doughnuts, then, in batches, carefully lower 2-3 doughnuts into the oil to fry.
Cook doughnuts, flipping in the middle, until golden brown on both sides. About 2 minutes per side.
Using a slotted spoon, remove doughnuts and transfer them to a paper towel-lined plate or tray to drain.
Place 1 cup sugar (and cinnamon, if using) in a re-sealable plastic bag. One at a time, add doughnuts to bag, and seal and shake it so that doughnut is covered in sugar.
Repeat with remaining doughnuts and serve immediately.