Mediterranean-style herring linguine

Name: Mediterranean-style herring linguine
Cook time: 20 min
Total time: 20 min
Cuisine: European, Mediterranean
Ingredients: 500 g dried linguine; 2 cloves of garlic; 1 fresh red chilli; ½ a bunch fresh flat-leaf parsley (15g); olive oil; 1 tablespoon baby capers; 4 x 40 g herring fillets skin on, scaled, pin-boned, from sustainable sources; 1 handful of ripe cherry tomatoes on the vine; 1 lemon; 1 knob unsalted butter optional; extra virgin olive oil