01 - Preheat the oven to 350°F. Lightly grease a nonstick donut pan with cooking spray or oil.
02 - In a large mixing bowl, whisk together sweet rice flour, granulated sugar, cocoa powder, baking powder, and salt until evenly blended.
03 - In a separate bowl, beat eggs, milk, vegetable oil, peppermint extract, and vanilla extract until thoroughly combined.
04 - Pour wet mixture into dry ingredients. Stir vigorously until smooth batter forms with no visible lumps.
05 - Spoon or pipe batter into prepared donut pan, filling each cavity approximately 3/4 full to allow for rising.
06 - Bake for 15-18 minutes until donuts spring back when touched lightly. Cool in pan for 5 minutes.
07 - Carefully remove donuts from pan and transfer to wire rack. Allow to cool completely before glazing.
08 - Whisk powdered sugar, cocoa powder, 2 tbsp milk, and peppermint extract until smooth. Add additional milk 1 tsp at a time if needed for thick, pourable consistency.
09 - Dip top of each cooled donut into glaze, letting excess drip off. Immediately sprinkle with crushed peppermint candies. Allow glaze to set for 15 minutes before serving.