Dangerously Addictive Sour Cream Donuts

Dangerously Addictive Sour Cream Donuts
adapted from Lara Ferroni
1 1/4 cups all-purpose flour
1 teaspoon baking soda
1 teaspoon ground cinnamon
pinch of Kosher salt
1/3 cup superfine sugar
1/4 cup sour cream
1 large egg
1 tablespoon unsalted butter
Vegetable oil for frying
Dulce de leche for glaze
1. In a large bowl sift together the flour, baking soda, cinnamon salt. Stir together and set aside.
2. In a separate bowl stir the sugar, sour cream, egg and butter until it is smooth. Then stir in the flour mixture until a dough forms. Cover the bowl and chill the dough for at least 20 minutes. Then, roll the dough out on to a lightly floured surface until it is 1/2 inch thick. Then cut it into 2 1/2 inch diameter circles with a biscuit cutter or donut cutter.
3. Fill a heavy bottomed skillet with vegetable oil and bring it to 350ºF. Drop in the dough and cook for 1 to 2 minutes. Remove from the oil and drizzle it with dulce de leche. Serve.