Place a rack in the center of the oven and preheat oven to 400 degrees F.

Line a baking sheet with parchment paper and set aside for later use.

In a mixing bowl, sift together flour, baking powder, baking soda, salt, fresh cracked black pepper, sugar, and granulated garlic. Cut in butter using a pastry cutter or potato masher until butter breaks down into pea-sized pieces.

In another bowl, combine egg, cold water, and sour cream. Beat lightly with a fork until just combined. Add to the flour mixture and stir until the dough is soft and begins to combine. Add the chive and cheddar cheese and dump mixture onto a clean surface to knead the dough. The dough should hold together in about 12-15 kneads.

Roll or pat the dough out into 1-inch thickness. Cut into 2-inch rounds using a biscuit cutter. Continue to reshape and roll dough to create more biscuits with scraps.

Place on prepared baking sheet, brush with egg wash and sprinkle with sea salt and fresh cracked black pepper. Bake for 16-20 minutes. Serve warm.