Instructions:

• Step 1: Preheat and Prep - Start by preheating your oven to 425°F (220°C). Line a baking sheet with parchment paper for easy cleanup.
• Step 2: Combine Dry Ingredients - In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, baking soda, and salt.
• Step 3: Cut in the Butter - Add the cold butter pieces to the flour mixture. Using a pastry cutter or a fork, cut the butter into the flour until it resembles coarse crumbs.
• Step 4: Mix in the Greek Yogurt - In a separate bowl, combine the cold Greek yogurt, beaten egg, and cold water. Gradually add this mixture to the dry ingredients, folding gently until just combined.
• Step 5: Shape the Biscuits - Turn the dough out onto a lightly floured surface. Pat it into a rectangle about 1-inch thick. Cut into squares or circles.
• Step 6: Brush and Bake - Transfer the biscuits to the prepared baking sheet. Brush the tops with the beaten egg. Bake for 12-15 minutes, or until golden brown.
• Step 7: Enjoy! - Remove from the oven and let cool slightly. Serve warm with butter or your favorite spread.