01 - Preheat oven to 350°F. Line a 9x13-inch baking sheet with parchment paper and lightly grease.
02 - Whisk together flour, sugar, salt, and baking powder in a bowl until thoroughly blended.
03 - Beat eggs, milk, melted butter, and vanilla extract in a separate bowl until homogeneous.
04 - Pour wet ingredients into dry ingredients and mix until just combined, avoiding overmixing.
05 - Spread batter evenly onto prepared baking sheet. Bake for 12-15 minutes until cake springs back when lightly touched. Cool completely.
06 - Whip heavy cream with powdered sugar and vanilla extract until stiff peaks form.
07 - Remove cooled cake from pan and trim edges for neatness. Spread whipped cream evenly over surface, leaving 1/2-inch border along one long side. Sprinkle diced strawberries over cream.
08 - Starting from opposite long side, roll cake tightly using parchment paper as guide. Refrigerate for 20 minutes to set.
09 - Slice rolled cake into 8 even pieces resembling sushi rolls. Top each piece with strawberry slice and mint if desired. Serve chilled.