Now when I did this in class I had the desks moved together and put a plastic tablecloth over all the desks. I then had each child put their cans and their bags in front of them and myself and parent volunteers each had an ingredient and we went down the line and placed our ingredient in the bags. We did the same thing with the ice and the salt and it worked well. It was efficient and organized and QUIET. So to get started place the ziplog bag in the can so that the bag stays upright.
Put the ingredients (half & half, sugar & vanilla) into the bag.
Cover the bag with ice and another 3 tablespoons of rock salt. Add enough ice until the can is packed full (but you can still seal the lid on).
Place the lid on the can and turn the can on it's side. Hold your elbows to your sides - this is the farthest distance the can should roll - this also allows the children to keep the rolling on their desks!
Roll back and forth for 5 minutes (you may want to stop after 2 minutes and pack with more ice (as the ice will melt quickly). It's important to say (especially to the kids) that the can needs to continue to roll the whole 5 minutes - don't stop. The faster it turns the faster the ice cream will freeze.
After 5 minutes take the bag out of the can and it should be frozen. If it's not frozen, place the bag back in the can, add more ice and roll for another 2 minutes. Ohh, see the frost on the lid. There's goodness in there!
See it's frozen! well you can't really see, but trust me it's frozen.
And if you do a really good job Amy Butler will come over. OK, maybe not the real Amy Butler but her fabric might just make it's way into the photo. Isn't it fun?
So as I was saying it's frozen, now you can see the frozen pieces in the bag. And you can just squirt inn your favorite topping.
And then enjoy with a spoon right out of the bag! It's really is that easy. Now, as you can see this stuff melts super fast, but I have found the kids don't seem to notice because #1 they eat it so fast and #2 they like to mix their toppings in like soup anyway.
*Note - you can increase the quantities it just will take longer to freeze and you may need to use a bigger container so you will need more ice. You can use a larger can and place two bags in the can (instead of one) - but again it will take a few minutes more to freeze. The children can then share a can and they roll the can back and forth between them on the floor.