Ingredients
- 2 14-ounce cans sweetened condensed milk
 
Directions
- Place unopened cans of sweetened condensed milk in a pot with enough water to cover the cans.
 - Bring the water slowly to a boil, then lower heat to a simmer and let cook, covered, for 3-4 hours.
 - Check occasionally to make sure the cans remain covered with water. Top off with more water as needed.
 - Cool the cans before opening.
 - Be careful! Make sure the cans are always covered with water, and that the hot water bath is simmering slowly to avoid the risk of the cans exploding.