- Preheat your oven to 450°F (about 232°C). 
- Line a baking sheet with parchment paper or lightly butter it to prevent sticking. 
- In a large bowl, whisk together the flour, baking powder, sugar, salt, and baking soda. 
- Keep them ready for the next step. 
- Cut the cold butter into small cubes. 
- Mix it into the flour mixture using your fingers or a pastry cutter until it resembles coarse crumbs. 
- Add the buttermilk to the mixture. 
- Stir gently just until the dough comes together. 
- Be careful not to overmix it. 
- Turn the dough onto a floured surface. 
- Gently pat it to about 1/2-inch thickness without kneading too much. 
- Cut out rounds using a 2-inch biscuit cutter. 
- Place them on the prepared baking sheet. 
- Bake in the preheated oven for about 12 to 15 minutes or until golden brown. 
- Remove them and let them cool for a moment before serving.