01 - Preheat oven to 350°F. Line a 9x13-inch baking sheet with parchment paper and lightly grease the surface.
02 - Whisk together flour, granulated sugar, salt, and baking powder in a mixing bowl until well combined.
03 - Beat eggs, milk, melted butter, and vanilla extract in a separate bowl until uniform.
04 - Pour wet ingredients into dry ingredients and mix until just combined, being careful not to overmix.
05 - Spread batter evenly onto the prepared baking sheet. Bake for 12–15 minutes until cake springs back when lightly touched. Cool completely.
06 - While cake cools, whip heavy cream with powdered sugar and vanilla extract until stiff peaks form.
07 - Gently remove cooled cake from pan and place on a clean surface. Trim edges for neatness.
08 - Spread an even layer of whipped cream over the cake, leaving a 1/2-inch border along one long side. Sprinkle diced strawberries evenly over the cream.
09 - Starting from the opposite long side, carefully roll the cake up tightly, using parchment paper to guide the roll. Refrigerate for 20 minutes to set.
10 - Slice the rolled cake into 8 even pieces to resemble sushi rolls. Top each piece with a strawberry slice and mint sprinkle if desired. Serve chilled.