In Steel Journeys Patagonia, Mia gives Abby some dulce de leche for the road. Try this recipe out if you’re looking for a sweet treat. The amazing part of this recipe is you only need one ingredient – 1 (14-ounce) can of sweetened condensed milk, label removed.
Place the can on its side in a large pot. Fill the pot with room-temperature water, making sure the water level is at least 2 inches above the can.
Set pot over high heat and allow to come to a simmer. Reduce heat and simmer for 2 hours for a lighter caramel, and up to 3 hours for a darker caramel; check the pot every 30 minutes to ensure the water level stays above the can, adding boiling water as necessary to top it up.
Using a pair of tongs, remove the can from the water and set on a wire rack to cool to room temperature (important: do not attempt to open the can while still hot, which can cause pressurized hot caramel to spray dangerously).
Unopened cans of dulce de leche can be stored at room temperature for up to 3 months. To use dulce de leche, open can when cool and scoop out of can; reheat in a double boiler to soften dulce de leche to a spreadable or drizzle-able consistency. Dulce de leche can be tranferred to an airtight container and refrigerated for up to 3 weeks.
Recipe courtesy of seriouseats.com