Lightly butter a medium baking dish. Preheat the oven to 350 degrees F.
In a bowl, whisk together the eggs, milk, heavy cream, sugar, cinnamon and vanilla extract and set aside.
Slice the mojicones in half horizontally. Place the bottoms of the sliced mojicuón in the baking pan, add the guava paste, then the tops of the mojicones(brown side up), being sure the pieces of guava paste are between the layers of the bread or it will burn while baking.
our the custard mixture over the mojicones and allow to soak for 10 minutes, pressing down gently.
Bake for 40 to 45 more minutes or until the pudding puffs up and the custard is set. Remove from the oven and serve warm or at room temperature.