01 - Preheat oven to 350°F. Grease and line two 8-inch round cake pans with parchment paper.
02 - Whisk together flour, baking powder, and salt in a bowl.
03 - Beat eggs and sugar with an electric mixer on high speed until pale and fluffy, about 5 minutes.
04 - Gradually fold in flour mixture, then add milk, melted butter, and vanilla. Mix just until combined.
05 - Divide batter evenly between pans. Bake for 25–30 minutes, or until a toothpick inserted in the center comes out clean. Cool in pans 10 minutes, then turn out onto wire racks to cool completely.
06 - Combine strawberries, sugar, lemon juice, and cornstarch in a saucepan. Cook over medium heat, stirring, until thickened and jammy, about 7 minutes. Cool completely.
07 - Beat heavy cream, powdered sugar, and vanilla to stiff peaks. Chill until ready to use.
08 - Place one cake layer on a serving plate. Spread with strawberry filling, then a layer of whipped cream. Top with second cake layer. Cover entire cake with remaining whipped cream. Chill in the freezer for 1 hour, until very firm.
09 - Melt chocolate and coconut oil together in a heatproof bowl set over simmering water, stirring until smooth. Let cool to room temperature but still pourable.
10 - Remove cake from freezer. Pour chocolate shell mixture over the cold cake, letting it drip down the sides and fully cover. The chocolate will set quickly to a glossy shell.
11 - Decorate with fresh strawberries and edible gold leaf or chocolate shavings, if desired. Chill 30 minutes before slicing.