Doughnuts

DOUGHNUTS PREP TIME: 20 MINS PLUS REST COOKING TIME: 3 MINUTES SERVES: 16 INGREDIENTS ½ x 7g packet dry yeast½ cup (125ml) warm buttermilk1 cup (230g) warm mashed potato2 extra-large eggs, lightly beaten2 tablespoons melted butter¾ cup (165g) caster sugar2 teaspoons...