Blackberry Cobbler
["1 (15 oz.) can blackberries, drained (reserve juice)", "1 Tbsp. cornstarch", "1 tsp. lemon juice", "1 can refrigerated cinnamon rolls", "Cool Whip"]
["Dissolve cornstarch in juice of blackberries.", "Add lemon juice.", "Pour in bottom of round cake pan.", "Add berries.", "Separate cinnamon rolls; place over top of berries.", "Bake in a 400\u00b0 oven until sauce is bubbling and rolls are golden brown.", "Garnish with Cool Whip."]
["blackberries", "cornstarch", "lemon juice", "cinnamon rolls"]