Best Flaky Buttermilk Biscuits

Line a large baking sheet with parchment paper.

Whisk flour, baking powder, baking soda, sugar, and salt in a mixing bowl.

Add cold butter, cubed or grated, and cut it in until the mixture has flat and crumbly pieces of butter.

Make a well and pour in the buttermilk. Mix gently until a shaggy dough forms.

Turn dough onto a lightly floured surface. Press into a square.

Cut the square into four pieces, stack them, and press into a square again. Repeat twice more.

Pat into a rectangle ½ to ¾ inch thick. Cut biscuits into rounds or squares. Freeze shaped biscuits for 10 to 15 minutes while you preheat your oven to 450°F

Brush the tops with egg wash. Bake 15 to 18 minutes or until golden brown. Cool at least 10 minutes before serving.