Set the oven to 350°F / 177°C and leave it for 15 minutes so the rack is actually hot. Weigh all-purpose flour, ground beef, 90% lean, yellow onion, egg, unsalted butter, dill, water, kosher salt. Beef pirozhki is cooked in Russia as its own plate, not as a copy of a restaurant menu. Fill a soft dough with cooked beef and onion and bake the pies until the crust is gold. Amounts are for 4 from foods this library can count.