01 - In a large mixing bowl, whisk together sweet rice flour, all-purpose flour, baking powder, granulated sugar, and salt to fully incorporate.
02 - In a separate bowl, whisk together whole milk, melted unsalted butter, large egg, and vanilla extract until homogenous.
03 - Pour the wet ingredients into the dry mixture. Use a spatula to mix until a smooth, sticky dough forms.
04 - Lightly dust hands and a work surface with sweet rice flour. Divide dough into 12 equal portions.
05 - Roll each portion into small balls. For each donut, arrange eight balls in a ring formation and gently press them together to adhere.
06 - Heat vegetable oil in a deep pot or fryer to 340°F. Carefully lower donuts into the oil in batches, frying 2–3 minutes per side until golden and slightly puffed. Drain on a wire rack or paper towels.
07 - For the glaze, whisk powdered sugar with milk, vanilla extract, and a pinch of salt until smooth.
08 - Dip each fried donut into the glaze, allowing excess to drip off. Set the donuts aside until glaze has set.