INGREDIENTS
4 cups
self-rising flour, plus more for dusting
2 tbsp
baking powder
1 tsp
baking soda
3/4 lb
salted butter, (cold, cut into 1/2-inch cubes)
2
large eggs, beaten PLUS 1 large egg for brushing
1 1/2 cups
buttermilk, plus more as needed and for brushing