Thinly slice the fennel & gently saute in a pan until soft - try not to get any colour; you can add a splash of water if needed to slow cooking the process.
Put the tomatoes, white wine, sliced garlic, a good pinch of Cornish Sea Salt Chilli Hit & olive oil in a roasting tin & cook on 180 for 15 mins until the tomatoes have softened.
Cook your pasta as per the instructions with a generous pinch of Cornish Sea Salt Crystals in the water. Drain & reserve a tbsp of that starchy cooking water to loosen the sauce.
Mix everything together & then lastly gently toss through the crab, fresh herbs & lemon zest.