1 medium bulb of fennel, roughly chopped
4 garlic cloves, peeled
1 large lemon
1 large orange
1 medium red onion, roughly chopped
salad and crusty bread, to serve
2 large handfuls of mixed fresh herbs - parsley, dill, tarragon, basil
3 tbsp capers, drained
flaked sea salt and freshly ground black pepper
extra virgin olive oil
4 whole fish (such as sea bass, sea bream, trout or red mullet), approx. 350-450g/12oz-1lb each, gutted and scaled