How do you caramelize condensed milk in a can?

You see all these warnings that the can may explode if you try to caramelize it unopened, but my mother routinely caramelized it in the can from approximately 1925 to 1985 without an explosion. She...

Most often condensed milk is sweetened, so no, you cannot make it back into whole milk. However, powdered milk can be made back.

A lot of sugar.

No, condensed milk is a completely different product that cannot be substituted for powdered milk.

Evaporated milk plus water equals milk. It is reconstituted by combining a 12 oz. can of evaporated milk with 12 ounces of water. If you mean sweetened condensed milk, it is condensed and highly...