01 -
Preheat oven to 350°F. Line a 10×15-inch jelly roll pan with parchment paper and lightly grease the paper.
02 -
In a large bowl, beat eggs and granulated sugar with a mixer on high speed until the mixture is pale, thick, and tripled in volume, about 5–7 minutes. Add vanilla extract and mix to combine.
03 -
Sift together all-purpose flour, cornstarch, baking powder, and salt. Gently fold the sifted dry ingredients into the whipped eggs until just combined.
04 -
Drizzle in the milk and mix gently until the batter is smooth.
05 -
Spread the batter evenly in prepared pan. Bake for 10–12 minutes or until the surface springs back when lightly touched.
06 -
Immediately invert the hot cake onto a clean kitchen towel generously dusted with powdered sugar. Peel off parchment paper and gently roll the cake up from the short end with the towel. Let cool completely while rolled.
07 -
Combine strawberries, 2 tablespoons granulated sugar, and lemon juice in a saucepan. Cook over medium heat until fruit softens and the mixture thickens slightly. Remove and cool completely.
08 -
In a chilled bowl, whip heavy whipping cream with powdered sugar to soft peaks. Fold in the cooled strawberry mixture. If desired, dissolve gelatin in 1 tablespoon water, bloom, melt, and fold into strawberry cream for more stability. Add a drop or two of pink food coloring if using.
09 -
Carefully unroll cooled sponge. Evenly spread strawberry cream filling across the surface, leaving a small border at edges.
10 -
Roll cake back up tightly without towel. Place seam side down on platter, cover, and refrigerate at least 1 hour to set.
11 -
Before serving, dust the roll with powdered sugar and garnish with fresh strawberries if desired. Slice using a sharp serrated knife for neat edges.