batter:
125 ml full-fat sour cream
100 g granulated sugar
1 large egg
1 tsp vanilla extract
1 tsp finely grated lime zest
225 g all purpose flour
1 tsp baking powder
¼ tsp salt
pinch of ground nutmeg
1 tbsp unsalted butter (melted)
vegetable oil (for frying)
glaze:
1 large egg white
1 tsp vanilla extract
200 g icing sugar (sifted)
200 g sweetened flaked coconut
The doughnut holes are best enjoyed the day they are made.