Whisk confectioners' sugar, 1/4 cup sprinkles, 3 tablespoons milk, lemon juice, 1 teaspoon vanilla extract, and 1 pinch salt together in a bowl to make a smooth glaze.
Whisk flour, brown sugar, baking powder, and 3/4 teaspoon salt together in a large bowl.
Combine 1 cup milk, egg, and 1 teaspoon vanilla extract in a small bowl. Stir into the flour mixture. Add melted butter and 1/4 cup sprinkles; mix until a soft dough forms.
Heat at least 2 inches of oil in a large pot to 350 degrees F (175 degrees C). Line a baking sheet or wire rack with paper towels.
Scoop a few tablespoons of dough into the hot oil using a small ice cream scoop. Fry donut holes until golden brown, about 1 minute per side. Transfer donut holes to the paper towels using a slotted spoon; let drain and cool slightly. Repeat with remaining dough.
Place a wire rack on a baking sheet. Dip one donut hole at a time into the glaze and place on the wire rack; allow excess glaze to drip off before serving.
Substitute seeds from 1/2 vanilla bean for the vanilla extract in the glaze if preferred.
We have determined the nutritional value of oil for frying based on a retention value of 10% after cooking. Amount will vary depending on cooking time and temperature, ingredient density, and specific type of oil used.
Aluminum foil helps keep food moist, ensures it cooks evenly, keeps leftovers fresh, and makes clean-up easy.
Per Serving: 107 calories;4.7 g fat;
15.3 g carbohydrates;
1.2 g protein;
9 mg cholesterol;
111 mg sodium.