These Crispy Apple-Oat Fritters are gluten-free.

1/2 cup plus 2 Tbsp. sugar, divided

11/2 teaspoon ground cinnamon, divided

Vegetable oil (for frying; about 4 cups)

1 cup gluten-free old-fashioned oats

1/2 cup rice flour

2 tablespoons cornstarch

1 teaspoon baking powder

3/4 teaspoon kosher salt

1 large egg

1/2 cup (or more) club soda

2 large crisp apples, peeled, cored with an apple corer, sliced into 1/4"-thick rings

A deep-fry thermometer

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