We recently did this fun science activity. We made home made vanilla ice cream. It tasted yummy!
1 cup half and half
2 Tablespoons sugar
1/2 teaspoon vanilla
Easy, peasy... Here's a link to the recipe and idea for this, instead of a big baggie full of ice we used cans and rolled them back and forth. http://www.2littlehooligans.com/2011/06/02/how-to-make-homemade-ice-cream-in/