In a small bowl, gently fold the crab with the avocado, cucumber, tomato concasse, shallots, chives and lemon juice together. In a larger, separate bowl, fold the mayonnaise with the whipped cream. Using a spatula, fold the crab mixture into the mayonnaise mixture. Adjust seasoning with salt and pepper.
Place a 3-inch round cookie cutter in the center of a chilled plate. Fill the cookie cutter with the crab salad and remove the cookie cutter. There should be a cylinder of crab salad. Drizzle the Gazpacho Coulis around the crab salad, and garnish with chervil or basil.
In a food processor, liquefy the tomato, tomato paste and cucumber. Juice the red pepper, garlic, and celery. With the food processor running, add the juice and olive oil to the tomato puree. Season with salt.
Recipe courtesy of Casa del Mar, Santa Monica, CA