1 1/4 c. self-rising flour
3/4 c. cake flour
3/4 tsp. baking powder
1/2 tsp. baking soda
3 tsp. sugar
1/2 tsp. salt
4 tbsp. cold unsalted butter, cut into pieces
1 c. buttermilk
1/2 c. grated cheddar cheese
1/2 c. finely chopped green onions
1/4 c. all-purpose flour, use to flour work surface
2 tbsp. melted unsalted butter

Preheat the oven to 475°F. Into a bowl, sift together the self-rising flour, cake flour, baking powder, baking soda, sugar and salt. Using your fingers or a pastry cutter, work the butter into the flour until the mixture resembles coarse crumbs. Add the buttermilk, cheese, and green onions and using your hands or a rubber spatula, stir just until the buttermilk and flour come together to form a dough, being careful not to overmix.

Lightly flour a work surface with the all-purpose flour. Turn out the dough onto the surface and press into a disk about 1/2 inch thick and 8 inches in diameter. Using a 3-inch round cutter dusted in flour, cut into round. Be sure to press straight and downward when cutting the dough, a twisting motion will prevent the dough from rising.

Reform the scraps in order to bake 7 biscuits. Place on a small baking sheet and brush the tops with the melted butter.

Bake until golden brown, 10 to 12 minutes. Remove from the oven and serve hot or at room temperature.