Preheat the oven to 400°F (200°C). Line a baking sheet with parchment paper.

In a large mixing bowl, combine the flour, baking powder, baking soda, salt, and black pepper.

Gently fold in the chopped rosemary, thyme, and grated cheddar cheese.

Cut the cold unsalted butter into small cubes and work it into the mixture until it resembles coarse crumbs.

Pour the buttermilk into the mixture and stir until the dough starts to come together.

On a floured surface, pat the dough into a rectangle about 1 inch thick and cut into wedges.

Brush the tops with egg wash for a golden color.

Bake for 15-20 minutes until puffed and golden brown.

Allow to cool slightly on a wire rack before serving warm.