Created by Marramamba on March 15, 2015
Step 1: Move broiler rack to lowest possible position, at least 6 inches from the top element, and turn on oven broiler.
Step 2: In a mixing bowl, combine the sour cream, lime zest, sugar, and cinnamon. Gently fold in the blackberries, and transfer to small gratin dish. Sprinkle brown sugar on top. Broil until the brown sugar melts and darkens, 1 to 3 minutes, rotating the dish halfway through so it browns evenly but doe not burn. Serve hot.