We made this in Pagosa Springs, CO with my mom.
2 T. Sugar
1 C. Half and half
1/2 t. Vanilla Extract
1/2 C. Rock Salt
Ice
1 pint size ziploc bag
1 gallon sized ziploc bag
Combine the sugar, half and half, and vanilla extract in the pint size bag and seal it tightly.
Place the salt and ice in the gallon size bag then place the sealed smaller bag inside as well. Now shake the bags until the mixture hardens (about 5 minutes). Feel the smaller bag to determine when it is done.