Step 1

Open cans of sweetened condensed milk and pour into three half pint jars, dividing evenly. Put on lids and rings. They should be snug but not too tight.

Step 2

Place jars in crock pot and add water to just reach the bands of the jars.

Step 3

Cook on low heat for 6-8 hours (for caramel sauce consistency) or 10 hours (for a consistency more like pudding; see notes).

Step 4

Carefully, remove jars from the crock pot and enjoy!