Caviar has a delicate flavor, and it shouldn’t compete with another ingredient, which could overwhelm it which would include either food or drink.
Being a non fan of either vodka or champagne, I would like to recommend a dry white wine, which by the way should always be chilled. I would be inclined to suggest a Sauvignon Blanc as an example.
This is one of the driest, crispest wines. This lean, clean wine is often herbaceous with well balanced acidity and underlying fruits. You can find Sauvignon Blanc grown around the world. Major growing regions include Bordeaux, New Zealand, the Loire Valley, South Africa, Austria, California, and Washington State. Types of Dry White Wine
There are some traditional drinks that are generally paired with caviar asthe following can demonstrate.
What to Drink With Caviar
The most traditional drinks to pair it with:
•Champagne (chilled) - any good champagne will usually do, but the absolute best is a fine traditional brut or extra-brut
•Dry white wine (chilled)
And the non-so-traditional ones:
•Beer (need you ask? Ice-cold!)The tailgating party just got a first-class upgrade! The trick is to go for light beers (domestic or imported, your choice). Beers that are too dark will overwhelm the palate, and take away from the crisp and smooth flavor of the caviar. To best enjoy, keep it simple, and pair a tall glass of ice-cold beer with a scoopful of caviar. - Caviar Pairings