2 ounces sliced guanciale, cut into 1-inch squares
3 tablespoons olive oil, plus more for drizzling
4 ounces strained tomatoes, such as Pomi
1 clove garlic, crushed
8 ounces bucatini pasta
Pinch red pepper flakes
1 small block pecorino
Bring a 2-quart pot of water to a boil.