Put a cup of beer and the sugar into a pan over gentle heat and reduce down to about 1/8 of a cup.
Put this into a mixing bowl and when cooled whisk in an equal volume of vegetable oil – if you have ¼ cup of beer whisk in ¼ of oil, 3 tbls beer to 3 tbls of oil etc
Season with salt and freshly ground black pepper and chopped chives.
Spoon some vinaigrette over a fresh oyster garnish with some finger lime pulp and eat.