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 evenly blended.
03 - Beat eggs, milk, melted butter, and vanilla extract in a separate bowl until fully incorporated.
04 - Pour wet ingredients into dry ingredients and stir gently until just combined. Avoid overmixing to keep the cake tender.
05 - Spread batter evenly across the prepared baking sheet. Bake for 12-15 minutes until the cake springs back when lightly touched. Cool completely before proceeding.
06 - While cake cools, whip heavy cream with powdered sugar and vanilla extract using an electric mixer or whisk until stiff peaks form.
07 - Carefully remove cooled cake from the pan and place on a clean work surface. Trim edges for a neat appearance.
08 - Spread whipped cream evenly over the cake surface, leaving a 1/2-inch border along one long side. Sprinkle diced strawberries uniformly across the cream.
09 - Starting from the opposite long side, roll the cake tightly using the parchment paper to guide the shape. Refrigerate for 20 minutes to set the roll.
10 - Cut the chilled roll into 8 equal pieces resembling sushi rolls. Top each piece with a strawberry slice and chopped mint if desired. Serve chilled.