Preheat oven to 375°F. Place blackberries in a lightly greased 8-inch square baking dish; add cream. Stir together egg, sugar, butter and flour in a medium bowl until mixed. Spoon over fruit.
Bake for 35 minutes or until lightly browned and bubbly. Let stand 10 minutes. Serve warm with whipped cream, if desired.
Makes 6 servings
Southern Living - adapted
Recipe by Recipes Food and Cooking at https://recipesfoodandcooking.com/2008/07/01/blackberry-cobbler/