Add about 8 cups of snow to a large mixing bowl, set the rest of the snow aside in another large bowl.
Add half of the sweetened condensed milk and the vanilla to the snow and stir to combine with a rubber spatula. You can also use a hand mixer on low speed.
Add 4 more cups of snow and sweetened condensed milk to the bowl, as well as any syrup if you're adding it. Mix to combine. The sweetened condensed syrup will help to thicken the snow and make it extra creamy. Add more snow if needed.
Feel free to fold in any extras, then scoop into ice cream bowls or cones and top with sprinkle
Notes
For the syrup, you can use any sundae syrup you'd like such as caramel, chocolate, butterscotch, strawberry, and more. For vanilla ice cream, simply leave out the syrup and double the vanilla extract for a more intense flavor.There are a lot of different kinds of snow and some may be heavier or fluffier than others. The type of snow may impact the amount you need for the recipe.