Add the butter and chopped garlic into a small pan and melt the butter over a very low heat. Very lightly fry the garlic without colouring them. Remove the pan from the heat and allow the butter to infuse with the garlic flavour for 30 minutes.

While the butter is infusing, preheat the oven to 200°C (fan oven). This is 220°C for conventional ovens (or 425°F / gas mark 7).

If the butter has solidified while off the heat, return the pan to a low heat to melt again. Strain the butter, discarding the garlic and toss the snails in the melted garlic-infused butter.

Place a snail into each groove of the snail dish and spoon a small amount of butter on top of each. Divide the grated Gruyere over each bowl and place in the oven until the cheese is crispy, approximately 10-15 minutes. (It is easier and safer to place the dishes onto a tray.)

Carefully remove the tray from the oven and garnish each dish with finely chopped parsley.