INSTRUCTIONS
1. Fill a large pot with lightly salted water and bring to a rolling boil. Stir in bucatini and return to a boil. Cook, uncovered, stirring occasionally, until bucatini is tender, about 11 minutes. Drain.
2. Heat oil in a large skillet over medium-high heat. Add garlic cloves; cook until golden brown, about 1 minute. Remove with a slotted spoon and discard. Add guanciale; cook and stir until crisp and golden, about 4 minutes. Add onion and red pepper flakes; cook and stir until onion is translucent, about 3 minutes. Stir in tomatoes, salt, and black pepper. Simmer tomato sauce until flavors combine, about 10 minutes.
3. Stir bucatini and Pecorino Romano cheese into tomato sauce and toss until evenly coated.
