@colinpurrington I hope it went well! I first tried that a few months ago - stores don't seem to be stocking dulce de leche - but I did 4 cans at once, with some small rocks as well, to minimize the amount of energy/water required. Mine came out almost too thick.
@colinpurrington I think went to 40 min. and even let them sit a bit; since it was the first time I tried it, I figured a bit stiff would be better than light and thin and I'll go shorter next time.