Preheat the oven to 425°F (220°C).

Combine the dry ingredients in a large bowl: whisk together 2 cups of all-purpose flour, 2 tablespoons of granulated sugar, 1 tablespoon of baking powder, and 1 teaspoon of salt until well mixed.

Cut in the cold salted butter using a pastry cutter until the mixture resembles coarse crumbs.

In another bowl, mix together 1 cup of cold buttermilk, 1 large egg, and 1 tablespoon of vinegar until just combined.

Pour wet ingredients into dry and stir gently until just combined.

Turn the dough out onto a floured surface and gently knead a few times.

Roll to about ¾ inch thick and cut into biscuits using a biscuit cutter or glass.

Place cut biscuits on a baking sheet and brush the tops with melted salted butter.

Drizzle honey over the biscuits and sprinkle with flaky sea salt.

Bake for about 20-25 minutes or until golden brown.