Preheat your oven to 425°F.
Prepare a baking sheet with parchment paper or lightly grease it with butter.
In a large mixing bowl, combine 2 cups of all-purpose flour, 2 tsp of baking powder, 1/2 tsp of baking soda, and 1/2 tsp of salt.
Mix thoroughly to incorporate all the dry ingredients.
Add the 1/2 cup of cold, diced butter.
Use a pastry cutter or your fingertips to blend the butter into the flour mixture until it resembles coarse crumbs.
Gradually pour 3/4 cup of buttermilk into the flour and butter mixture.
Stir gently with a fork until the dough just comes together.
Turn the dough out onto a floured surface and knead gently for a few seconds.
Pat or roll out to about 1-inch thickness and cut with a biscuit cutter.
Transfer biscuits to your prepared baking sheet.
Bake for 12-15 minutes until golden brown.