01 -
Set oven to 350°F. Lightly grease a donut pan to prevent sticking.
02 -
Whisk together flour, cornstarch, baking powder, baking soda, nutmeg, sugar, and salt in a medium bowl until evenly mixed.
03 -
Add milk, sour cream, egg, melted butter, and vanilla extract to the dry mixture. Stir gently until the batter is smooth and free of lumps.
04 -
Transfer batter to a piping bag or resealable bag with a corner cut, then pipe batter into donut pan cavities filling approximately two-thirds full.
05 -
Bake for 9 to 10 minutes until tops spring back when lightly pressed and a toothpick inserted comes out clean. Cool donuts on a wire rack.
06 -
Melt dark chocolate wafers in short bursts in the microwave, stirring between intervals until smooth.
07 -
Dip the bottom of each cooled donut into melted chocolate and place chocolate side up on a wire rack to set.
08 -
Melt caramels with 1 tablespoon milk in the microwave, stirring until smooth. Stir in toasted shredded coconut and salt until combined.
09 -
Spread the warm caramel coconut mixture over each donut evenly. Allow to set briefly before drizzling remaining melted chocolate in a zigzag pattern over the top.
10 -
Let the toppings fully set before serving or storing. Store in an airtight container at room temperature for up to three days.