Buttermilk Biscuits

 I got this from "Preppy Kitchen". I scaled it up by 1/3.

1 stick unsalted butter

320g all purpose flour

1 Tbsp + 1sp baking powder

1 Tbsp sugar

2 tsp diamond kosher salt

1/4 tsp baking soda

240mL buttermilk

Fold in 1/3 five times. Bake at 400F for about 17 minutes.