Ostras grelhadas (grilled oysters)

Instructions

1. Preheat the oven grill or a barbecue over high heat.
2. Finely chop the garlic, the deseeded chilli and the parsley, then mix them into the softened butter with the zest and a little lemon juice.
3. Open the oysters with an oyster knife, keeping the juice, then detach the muscle.
4. Place a knob of the flavoured butter on each oyster.
5. Grill for 3 to 4 minutes, until the butter bubbles and the edges start to curl.
6. Serve immediately, with bread and the remaining lemon.