Chocolate Chip Cookie Dough Ice Cream Sandwiches

Name: Chocolate Chip Cookie Dough Ice Cream Sandwiches
Prep time: 3 h 20 min
Total time: 3 h 20 min
Cuisine: American
Ingredients: 1/2 cup salted butter; 1/3 cup packed light brown sugar; 1/4 cup granulated sugar; 2 tablespoons milk; 1/2 teaspoon pure vanilla extract; 1/4 teaspoon salt; 1 1/4 cup all-purpose flour (see note); 1 cup mini chocolate chips; Nonstick cooking spray; Quart cookie dough ice cream (softened to spreadable consistency)