On a mission to find recipes to use up the random tin of guava paste that I often have in the pantry, I came across this one online somewhere. The applesauce and glaze are my own doctorings, because the original recipe was good but quite dry. It's still a very dense butter cake, so those bakers desiring a lighter-textured cake may want to add more applesauce to the recipe.
06Sift flour and baking powder together in a separate bowl.
07Gradually add flour mixture to butter mixture until fully blended.
08Spread half the cake batter in greased pan.
09Top with guava paste, taking care not to place paste against pan sides (it will melt and spread once baked).
10Top with remaining cake batter, covering guava paste.
11Bake for 45-55 minutes, or until a toothpick inserted in center comes out clean (except for the guava paste).
12Mix ingredients for glaze until smooth, and pour over warm cake.
13Allow to cool before serving, as filling will be extremely hot (not good to incinerate your tester's taste buds - you will lose tasting volunteers that way!).