Chop the broccoli finely. Cut garlic in half lengthwise, remove the core, and mince.

Heat olive oil, garlic, and chili in a frying pan over low heat until fragrant. Add broccoli and stir-fry over medium heat for 1–2 minutes. Add clams and white wine, cover, and cook over medium heat until clams open (2–3 minutes).

Boil water in a pot, add salt (not listed in ingredients), and cook spaghetti 1 minute less than package instructions. Reserve 50ml of pasta water and drain the spaghetti.