Preheat the oven to 325 degrees F in a convection oven for 350 degrees F in a standard oven.
Mix all ingredients to form thin batter.
Spritz the cookie sheet with the non-stick spray. Line with a sheet of parchment paper, and then spritz it again.
With an offset spatula, spread a thin layer of batter onto the parchment. Bake until crisp and tanned, about 20 to 30 minutes (rotating the pan once, for even baking). Repeat.
Once all the flatbread is cooked, break it into bite size pieces with your hands. Serve with osetra caviar and caviar garnishes: creme fraiche, chopped hard-boiled eggs, and chopped chives.