Lemon Zest Scones

Steps

1. whisk1 min
   dry, room temperature
   flour + baking powder + sugar + salt, whisked thoroughly — baking powder that stays in a clump gives one bitter scone and six flat ones, and there is no later step that redistributes it
2. mix4 min
   cold hands, cold butter
   + cold butter, rubbed between fingertips until the largest pieces are the size of peas and the rest looks like coarse meal; stop while flakes are still visible, because those flakes melt in the oven and the water in them turns to steam that lifts the crumb. Butter rubbed to a paste makes a short, cakey scone that will not rise
3. fold2 min
   minimal handling
   Add the cold milk and the zest of the listed half lemon, without its juice. Cut through with a knife blade just until shaggy and slightly sticky with dry patches; stop before the dough becomes smooth.
4. rest10 min
   refrigerator
   dough, wrapped, so the flour hydrates and the butter re-firms; warm dough spreads sideways instead of upward
5. prep4 min
   floured surface
   pat — do not roll — the dough to a slab a full 1 inch thick, then stamp rounds with a floured cutter pressed straight down and lifted straight up. Height at the cutter is height on the plate, and twisting the cutter shears the edge closed so that side cannot climb. Press scraps together once only and cut the last round from them; twice-worked dough is noticeably tougher
6. bake13 min
   425°F / 220°C, upper third
   rounds spaced 1 inch apart, tops brushed with beaten egg but not the sides — glaze that runs down the cut face sets into a varnish and pins the rise. Done when risen to nearly double, deep gold on top and pale at the seam, which is where they split by hand rather than by knife
7. rest5 min
   wire rack
   scones, uncovered, so trapped steam escapes and the base does not go leathery = warm scones, split and topped with clotted cream and jam