The first step in making Bolo de Rolo is preparing the sponge cake. Start by beating eggs and sugar together until light and fluffy. Gradually add in flour and milk, being careful not to overmix the batter. The key to a light and airy sponge cake is to gently fold in the ingredients, ensuring a tender crumb texture once baked. Pour the batter onto a parchment-lined baking sheet and spread it out evenly, then bake until golden brown and springy to the touch.

Once the sponge cake is baked and cooled, it's time to assemble the Bolo de Rolo. Begin by spreading a thin layer of guava paste over the surface of the cake, making sure to leave a border around the edges. This will prevent the filling from oozing out when the cake is rolled. Carefully roll the cake from one end to the other, using the parchment paper to help guide the roll and keep it tight. Be gentle but firm in your rolling to ensure a smooth and even spiral of cake and filling.

After rolling the cake, wrap it tightly in plastic wrap and refrigerate for at least an hour to set. This will help the cake maintain its shape and prevent it from unraveling when sliced. Once chilled, unwrap the cake and trim the ends to create a clean finish. Dust the top with powdered sugar for a decorative touch, then slice into rounds to reveal the beautiful spiral pattern of guava and cake.

While mastering the art of Bolo de Rolo cake may take some practice, the end result is well worth the effort. This traditional Brazilian dessert is not only visually stunning but also incredibly delicious, with a perfect balance of flavors and textures. The combination of light sponge cake and sweet guava paste creates a dessert that is sure to impress your family and friends.

For a fun twist on the classic Bolo de Rolo recipe, try experimenting with different fillings and flavors. Some popular variations include using passion fruit or coconut paste in place of guava, or incorporating nuts and chocolate for added texture and richness. Feel free to get creative and customize the recipe to suit your taste preferences!