01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - In a large mixing bowl, whisk together the flour, baking powder, baking soda, and salt until evenly distributed.
03 - Add the cold cubed butter to the dry mixture. Using your fingertips or a pastry cutter, rub the butter into the flour until the mixture resembles coarse crumbs with some pea-sized pieces remaining.
04 - In a separate bowl, whisk together the hummus, milk, and egg until smooth and well combined.
05 - Pour the wet mixture into the dry ingredients and fold gently with a spatula until just combined. Do not overwork the dough.
06 - Fold in any desired add-ins such as chopped herbs, crumbled feta cheese, or toasted sesame seeds.
07 - Turn the dough out onto a lightly floured surface. Gently pat it into a round disc about 1 inch thick. Using a 2.5-inch round cutter, cut out scones and place them on the prepared baking sheet. Re-roll scraps to cut additional scones.
08 - Optionally brush the tops of the scones with a little milk and sprinkle with extra sesame seeds or herbs.
09 - Bake for 18 to 20 minutes until the scones are golden brown and well risen.
10 - Allow the scones to cool slightly on the baking sheet before serving warm with extra hummus or a tangy yogurt dip.