This is a slow cooker classic that I’ve adapted for the Sun Oven. In the slow cooker the jars need to be submerged to ensure even cooking, but even cooking is what the Sun Oven is all about so I didn’t worry about finding a pot big enough pot to do so. In fact, next time I might even try with no water at all. It works for hard boiled eggs, I don’t see why it wouldn’t work for this. However, in the meantime I have three jars of dulce de leche on my hands so it might be a while.
Sun Oven Dulce de Leche
2 (14-ounce) cans sweetened condensed milk
Set Sun Oven out to preheat.
Divide the milk evenly among 3 1/2 pint mason jars. Put the lids on the jars and close tightly. Place the jars in a large pot. Add enough hot water to reach the rims, it is not necessary to submerge the jars. Place a lid on the pot and transfer to the Sun Oven. Cook until the milk is golden brown and thick, about 6 hours. Remove the jars from the water and let cool. Refrigerate at least two hours before using; it will continue to thicken as it cools. Store jars in the refrigerator and use within 2 weeks.