Preheat oven to 350°. Combine berries, 1/4 cup sugar, cornstarch, lemon juice and cinnamon in a large bowl.
Combine Bisquick, 2 tablespoons coconut sugar, coconut milk and softened butter in a medium bowl.
Place butter in a 10-inch iron skillet; place skillet in oven until butter has melted. Spoon berry mixture evenly into skillet. Evenly spoon and spread topping mixture over berries. Sprinkle with a bit of coconut sugar.
Bake at 350° for 30 minutes or until topping is golden and berries are bubbly.