Heat oven to 425 degrees.
Put flour, baking powder, and salt into a large bowl; stir, mixing well. Add butter and cut in with a pastry blender (I use my Bosch pastry attachment) or rub in with your fingers, until the mixture looks like fine crumbs.
Add sugar and herbs, if using; toss to mix.
Add milk and stir with a wooden spoon until dough forms (dough may be a bit crumbly).
Place dough on floured counter and knead gently until the dough comes together in a ball. Pat or roll into a circle about 1 1/2 inches thick. Cut circle into 6 or 8 wedges.
Place wedges on a greased cookie sheet - slightly apart for crisp sides (my favorite) or touching for soft.
Bake about 12 minutes, or until medium brown on top.