Ask your fishmonger to shell
The langoustines or scampi for you.

Place them on a plate
In a single layer.
Cover with plastic wrap.
Keep refrigerated.

In a bowl,
Pour some mildly-flavored olive oil.
Scrape a vanilla bean, and
Add the seeds to the oil.
Emulsify.
Save the bean:
Cut it into small sticks
For decoration.

Peel to the flesh the pink grapefruit.
Section it over a bowl, and
Set aside in the refrigerator.

Right before serving,
Incorporate the grapefruit juice
Into the olive oil.
Brush the langoustines or scampi
With the vanilla-flavored oil and
The grapefruit juice.

Arrange the langoustines or scampi
And the grapefruit quarters
In a rose-petal pattern
On individual plates, and
Decorate with vanilla sticks.

Serve immediately!

On the table,
Place small bowls filled with
Coarse Guérande sea salt and
Fresh peppercorns.