1 cup whole milk
1 tsp. vanilla
1 tbsp. sugar
6 tbsp. salt
Ice

Place ice in a large ziploc freezer bag. In a small bag, add milk, vanilla and sugar. Squeeze air out of this bag and seal. Place the small bag inside the large bag with the ice. Pour 6 tablespoons of salt on the ice. Shake for 5 minutes. Pour it into a cup and enjoy!