Air Fryer Potato and Carrot Biscuits

Ingredients

• 2 cups (8 oz or 250 g) flour
• 2 teaspoons (8 g) baking powder
• 1/2 teaspoon (2.5 g) salt
• 1/4 cup (2 oz or 55 g) sugar
• 1/4 cup (2 oz or 60 g) butter
• 1 cup (8 oz or 250 g) mashed potatoes
• 1 medium (2 oz or 60 g) carrot, grated
• 1 (2 oz or 60 g) whole egg, beaten
• 1/3 cup (3 fl oz or 85 ml) cold water
• 1/3 cup (3 fl oz or 85 ml) milk + 2 tablespoons (1 oz or 30 ml) for brushing