Watch the recipe video
Method
Cook the spaghetti in well-salted water. Save a mug of pasta water before draining.
Meanwhile, warm the olive oil with the garlic and chilli on low heat for 2 minutes without browning.
Turn up the heat, add the prawns and cook 2–3 minutes until pink.
Add the drained pasta, butter, lemon zest and juice and a splash of pasta water. Toss until glossy.
Finish with parsley and season to taste.
Shabul's tip: Starchy pasta water turns butter and lemon into a silky sauce. Add it a little at a time.