2 empty cans, 1 lb. & a 3 lb. with plastic lids
1 1/2 c. rock or kosher salt
20 c. (about 7 1/2 lbs.) crushed ice
1 c. heavy cream
1/3 c. any of the following: raisins, diced peaches, crushed Oreos, diced strawberries
1 c. milk
1 tsp. vanilla

Combine ice cream ingredients in smaller can. Cover can tightly with lid and set in the center of the larger can. Layer 1/2 the ice alternately with 1/2 the salt in the empty space between cans. Cover the larger can with lid. Roll the can back and forth 10 minutes on a hard surface. Open outer can, empty old ice and water. Lift out small can, wipe lid dry and remove. Scrape ice cream from sides with a knife. Replace in large and and re-pack with remaining ice and salt. Cover and roll about 5 more minutes or until done.