Ingredients

• 0.5 cups white sugar
• 2.5 tablespoons butter , at room temperature
• 2 large egg yolks
• 2.25 cups all-purpose flour
• 1.5 teaspoons baking powder
• 1 teaspoon salt
• 0.5 cups sour cream
• 0.33 cups white sugar
• 1 teaspoon cinnamon
• 2 tablespoons butter , melted, or as needed

Instructions

1. 1 Press 1/2 cup white sugar and butter together in a bowl until crumbly. Add egg yolks and stir until well combined.
2. 2 Sift flour, baking powder, and salt into a separate bowl. Place 1/3 of the flour mixture and 1/2 the sour cream into the sugar-egg mixture; stir until combined. Mix in the remaining flour and sour cream. Refrigerate dough until ready to use.
3. 3 Mix 1/3 cup sugar and cinnamon together in a bowl.
4. 4 Roll dough out onto a lightly floured work surface to 1/2-inch thick. Cut 9 large circles in the dough; cut a small circle out of the center of each large circle to create doughnut shapes.
5. 5 Preheat an air fryer to 350 degrees F (175 degrees C).
6. 6 Brush 1/2 of the melted butter over both sides of the doughnuts.
7. 7 Place 1/2 doughnuts into the basket of the air fryer; cook for 8 minutes. Paint cooked donuts with the remaining melted butter and immediately dip into the cinnamon-sugar mixture. Repeat with the remaining doughnuts.

Nutrition per serving