Preheat the oven to 425 degrees F. Line your baking pan with parchment paper and keep it aside.
In a bowl, add all the dry ingredients - flour, baking powder, baking soda, salt, and mix. To this, add the cold butter slices/cubes and incorporate them into the flour mixture using a fork or pastry cutter until the mixture resembles coarse crumbs.
2 cups All purpose flour or Maida , 2 teaspoon Baking powder, ¼ teaspoon Baking soda , 1 teaspoon Salt, 8 tablespoon Unsalted butter (chilled and cut into slices , ½ cup)
Now make well at the center. Add buttermilk and mix just until combined. Do not overmix the dough.
¾ cup Buttermilk, cold plus additional 2 to 3 tablespoon for brushing
Transfer the dough to a well-floured surface and form a rectangle using a rolling pin.
Fold the rectangle into thirds and roll it out into another rectangle. Bring any dough crumbs together. Now repeat this folding procedure two more times. Check out the video here. Now finally, roll the dough into a ½-inch thick rectangle. Cut into 12 pieces using a cookie cutter. Or, use a knife and cut them into 12 squares. Reroll the dough if there are any scraps left.
Transfer these biscuits to a baking sheet and make an indent using your forefinger. Brush the tops of the biscuits with more buttermilk.
Bake for 15 minutes in the preheated oven until flaky and golden brown.
Serve warm, and enjoy. Happy Thanksgiving and Happy Holidays.