# What You'll Need:
→ Sponge Cake
01 - 4 large eggs, separated
02 - 3/4 cup granulated sugar, divided
03 - 1 teaspoon vanilla extract
04 - 1 cup all-purpose flour
05 - 1/4 teaspoon salt
→ Filling
06 - 8 ounces guava paste
07 - 2 tablespoons water
→ Meringue Topping
08 - 3 large egg whites
09 - 1/2 cup granulated sugar
10 - 1/2 teaspoon cream of tartar
# Cooking Steps:
01 - Preheat oven to 350°F. Line a 10x15 inch jelly roll pan with parchment paper and lightly grease the surface.
02 - In a large bowl, beat egg yolks with half the sugar and vanilla extract until pale and thick, approximately 3-5 minutes.
03 - In a separate clean bowl, whisk egg whites with remaining sugar, salt, and cream of tartar until stiff peaks form.
04 - Gently fold the egg whites into the yolk mixture using a rubber spatula, then sift in the flour and fold until just combined, being careful not to overmix.
05 - Pour batter into prepared pan and spread evenly. Bake for 12-15 minutes until the cake springs back when lightly touched.
06 - While still warm, invert the cake onto a clean kitchen towel dusted with sugar. Carefully peel off parchment paper. Roll the cake with the towel starting from a short end and allow to cool completely.
07 - Gently melt guava paste with water in a small saucepan over low heat, stirring until smooth. Cool to room temperature.
08 - Unroll the cooled cake and spread guava filling evenly across the entire surface.
09 - Roll up the cake tightly without the towel and transfer seam-side down to a serving platter.
10 - Beat egg whites in a clean bowl until soft peaks form. Gradually add sugar and continue beating until stiff, glossy peaks develop.
11 - Spread or pipe meringue over the top and sides of the rolled cake.
12 - Optional: Torch the meringue with a kitchen torch for a golden finish, or briefly broil under high heat while watching closely to avoid burning.
13 - Chill for at least 30 minutes before slicing and serving.