01 - Preheat oven to 350°F. Line a 9x13-inch baking sheet with parchment paper and lightly grease the surface.
02 - In a medium bowl, whisk together flour, granulated sugar, salt, and baking powder until well incorporated.
03 - In a separate bowl, beat eggs thoroughly. Whisk in milk, melted butter, and vanilla extract until smooth.
04 - Pour the wet mixture into the dry ingredients. Fold gently until just combined, being careful not to overmix.
05 - Spread batter evenly across the prepared baking sheet. Bake for 12 to 15 minutes until the cake springs back when lightly touched. Cool completely on the pan.
06 - While cake cools, whip heavy cream with powdered sugar and vanilla extract using an electric mixer until stiff peaks form.
07 - Carefully invert the cooled cake onto a clean work surface. Trim the edges evenly for a neat appearance.
08 - Spread whipped cream in an even layer over the cake surface, leaving a 1/2-inch border along one long edge. Distribute diced strawberries uniformly over the cream.
09 - Starting from the long side opposite the border, roll the cake tightly. Use the parchment paper to guide and support the roll as you work.
10 - Wrap the rolled cake securely in parchment. Refrigerate for 20 minutes to allow the roll to firm and set.
11 - Cut the chilled roll into 8 even pieces. Top each piece with a strawberry slice and sprinkle with chopped mint if desired. Serve chilled.