How to Make (and say) Bucatini all'Amatriciana - Appetito

Ingredients

• 1 lb bucatini (a thick, dry spaghetti can be substituted)
• 1/2 lb guanciale sliced into long, thin strips (like matchsticks)
• 1 medium red onion, halved and sliced ¼-inch thick
• 1-1/2 tsp red pepper flakes
• 1 28 oz can of whole San Marzano tomatoes (crushed by hand)
• 1/2 cup torn basil leaves plus a handful ribboned and reserved for garnish
• 1/2 cup grated Pecorino Romano plus ¼ cup for sprinkling
• salt and sugar, to taste
• Extra virgin olive oil, as needed