You are here: Home » Recipes » Ice Cream in a Bag Ice Cream in a Bag Recipe by RelishKitchen Tested Yield 2 servings Prep 20 mins Cook 0 mins You won't need special equipment to make this kid-pleasing ice cream. PrintEmail Remember making butter in Girl Scouts? Everyone passed around the jar of cream and gave it a good shake. After a few rounds, the cream had magically turned to butter. Here is a similar feat that not only yields dessert but exercise for the kids—ice cream in a bag. Here’s how it works. Ingredients 3 tablespoons sugar1 cup light cream (half and half)1/2 teaspoon vanilla Rock salt Instructions Place sugar, cream and vanilla in a quart-size heavy zip-top plastic bag and seal. Place that bag in a gallon size heavy zip-top bag. Layer ice and rock salt in the gallon bag and seal. Toss the bag back and forth for approximately 10 minutes.