Guayeco jam is made from fresh guava fruits, it's spreadable thick, rich and absolutely delicious. 10 great ways to use guava jam and marmalade: mix into yogurt, use as a filling for pastries, cakes, cupcakes, cookies and doughnuts, spoon atop waffles, pancakes, crepes and blintzes, use as an easy glaze on chicken or shrimp, spread on bagels with cream cheese, serve with brie, provolone, ranchero, and mascarpone cheeses, use as a pizza sauce or a calzone filling, serve alongside omelets and quesadillas, create a savory chutney sauce, use as a spread for panini, focaccia and sub sandwiches.