Dulce de leche is a delicious sweet spread that originates from Argentina. It is made by slowly heating sweetened condensed milk until it caramelizes and thickens. This decadent treat has become a popular flavor in desserts, coffee, and ice cream. If you're looking for synonyms for dulce de leche, you might consider caramel sauce, toffee, or butterscotch. These are all sweet, rich flavors that share a similar caramelized sweetness. Other related flavors include honey, maple, and brown sugar, all of which have a similar depth of flavor and sweetness that can help enhance the taste of any dessert or beverage.