1. Preheat Oven & Prepare Baking Sheet:

• Preheat your oven to 450°F (230°C).

• Line a baking sheet with parchment paper.

2. Mix Dry Ingredients:

• In a large bowl, whisk together the flour, baking powder, baking soda, sugar and salt until well combined.

• Add the cold, grated butter into the dry ingredients. Use your fingers or a pastry cutter to mix the butter into the flour until it resembles coarse crumbs. You should still see little chunks of butter throughout the mixture.

• Slowly pour the wet ingredients (buttermilk and whole milk) into the dry mixture, stirring gently until just combined. Be careful not to overmix – the dough should be slightly lumpy.

3. Form the Dough:

• Turn the dough out onto a lightly floured surface. Gently pat the dough into a rectangle (about 1-inch thick).

• Fold the dough over itself a couple of times (about 3 folds). This helps create flaky layers in your biscuits. Add more flour if necessary.

• Use a biscuit cutter or a round glass (about 2-3 inches in diameter) to cut out biscuits. Press straight down, don’t twist the cutter, to ensure the biscuits rise properly.

• Place the biscuits on the prepared baking sheet, leaving a little space between them.

4. Brush with Egg Wash:

• In a small bowl, whisk together the egg and 2 tbsp of whole milk.

• Brush the tops of each biscuit with the egg wash for a golden finish.

5. Bake:

• Bake the biscuits in the preheated oven for 12-15 minutes, or until they’re golden brown on top.

• Let the biscuits cool for a few minutes before serving. Enjoy them warm with butter, jam, or your favorite toppings!