Raspberry Blueberry Star Tart

This recipe for Raspberry Blueberry Star Tart brings together 2 (19 ounce) packages refrigerated sugar cookie dough, 1 (14 ounce) can fat-free sweetened condensed milk, 1/2 cup light sour cream in a practical dish for home cooking. It takes about 4 hrs 30 min to prepare and cook. It makes approximately 10 servings.