Instructions

• Pour 3–4 cups vegetable oil into a large sauté pan or pot so the oil is about 1/2 inch deep. Heat over medium until the oil reaches 355°F (use a thermometer) and hold at that temperature.
• While the oil heats, whisk together 1 1/4 cups all-purpose flour, 1/4 cup granulated sugar, 2 tsp baking powder, and 1/4 tsp salt in a medium bowl.
• In a separate bowl, whisk together 1/2 cup buttermilk and 3 Tbsp melted butter.
• Pour the buttermilk mixture into the flour mixture and stir with a fork just until combined; do not overwork the dough.
• Using a 1/2 tablespoon measuring spoon, portion the dough into individual balls and place them on a plate or tray, leaving a little space between each.
• When the oil is at 355°F, fry the dough balls in batches (do not overcrowd the pan). Fry until the bottom is golden brown, then flip and fry the other side until golden brown.
• Remove fried donuts with a slotted spoon or spider and drain on a paper towel–lined baking sheet.
• Put 1/3 cup granulated sugar in a shallow dish. While the donuts are still warm enough for the sugar to adhere but cool enough to handle, roll each donut in the sugar to coat.
• Repeat frying and coating with the remaining dough balls. Let donuts cool slightly before serving.