01 - Preheat oven to 400°F and line a baking sheet with parchment paper.
02 - In a large bowl, whisk together the flour, baking powder, salt, and cumin until evenly distributed.
03 - Add the cold cubed butter and rub it into the flour mixture using your fingertips or a pastry cutter until it resembles coarse crumbs.
04 - Stir in the hummus, milk, and egg. Mix gently just until the dough comes together; avoid overworking.
05 - Gently fold in the fresh herbs and crumbled feta cheese if using.
06 - Turn the dough out onto a lightly floured surface and pat it into a 1-inch thick round.
07 - Using a 2.5-inch round cutter, cut out scones and place them on the prepared baking sheet.
08 - Bake for 18 to 20 minutes until the scones have risen and are lightly golden on top.
09 - Allow the scones to cool slightly on the baking sheet before serving warm.