01 -
Preheat oven to 350°F (177°C). Lightly grease a standard donut pan with nonstick oil spray.
02 -
In a medium bowl, whisk together all-purpose flour, cornstarch, baking powder, baking soda, ground nutmeg, and granulated sugar until well incorporated.
03 -
Add milk, sour cream, large egg, melted butter, and vanilla extract to the dry mixture. Stir until the batter is smooth and lump-free.
04 -
Transfer batter to a piping bag or a zip-top bag with a corner snipped off. Pipe mixture evenly into prepared donut rings, filling each cavity about two-thirds full.
05 -
Bake for 9–10 minutes, or until the donuts are springy to the touch and a toothpick inserted comes out clean. Cool in pan briefly, then transfer to a wire rack.
06 -
In a heatproof bowl, melt dark chocolate wafers in 20-second microwave bursts, stirring between each, until fully smooth. Dip the bottom of each cooled donut in melted chocolate and set chocolate side up on a rack to set.
07 -
Spread shredded coconut evenly on a baking sheet and bake at 325°F (163°C) for 5–7 minutes, stirring once, until golden and fragrant. Let cool.
08 -
In a microwave-safe bowl, combine soft caramels and 1 tablespoon of milk. Microwave in 30-second intervals, stirring, until melted and smooth. Add salt and toasted coconut; mix thoroughly.
09 -
Spread warm caramel coconut topping over each donut. Allow to set for a few minutes.
10 -
Reheat any remaining melted chocolate if needed and drizzle in a zigzag motion over caramel topping. Allow donuts to set fully at room temperature before serving or storing.