Baked Blueberry Thing

Ingredients

• 14 cup low-fat sour cream
• 1 tablespoon brown sugar (can be brown sugar splenda)
• 1 teaspoon brown sugar (can be brown sugar splenda)
• 4 cups blueberries (or other berries)
• 12 cup all-purpose flour
• 2 tablespoons granulated sugar or 2 tablespoons Splenda sugar substitute
• 2 tablespoons brown sugar (can be brown sugar splenda)
• 2 tablespoons margarine or 2 tablespoons unsalted butter, softened