Preheat the broiler.
In a small gratin or other shallow flameproof baking dish arrange fruit in 1 layer. In a small bowl stir together sour cream, ginger, and vanilla and drop in dollops on top of fruit, spreading to cover fruit completely. Rub brown sugar through a sieve evenly over topping and broil about 3 inches from heat 2 minutes, or until brown sugar is melted.
Recipe courtesy of Gourmet Magazine