01 - Preheat oven to 350°F. Grease and flour two 9-inch round cake pans, lining the bottoms with parchment paper for easy release.
02 - In a large mixing bowl, sift together the all-purpose flour, granulated sugar, unsweetened cocoa powder, baking powder, baking soda, and salt until evenly distributed.
03 - Add the eggs, whole milk, vegetable oil, and vanilla extract to the dry mixture. Beat until just combined. Gradually pour in the boiling water while mixing continuously until the batter is smooth and fluid.
04 - Divide the batter evenly between the two prepared pans. Bake for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean. Let the cakes rest in the pans for 10 minutes, then invert onto wire racks to cool completely.
05 - While the cakes bake, toss the hulled and sliced strawberries with granulated sugar and fresh lemon juice. Set aside for at least 20 minutes to allow the berries to release their natural juices and develop flavor.
06 - Heat the heavy cream in a saucepan over medium heat until it just begins to simmer. Remove from heat and pour over the chopped semisweet chocolate in a heatproof bowl. Let stand for 2 minutes, then stir gently until completely smooth and glossy. Allow to cool until thickened yet still pourable.
07 - If using the whipped cream topping, beat the heavy whipping cream with powdered sugar and vanilla extract using an electric mixer until soft peaks form. Be careful not to overwhip.
08 - Place one cooled cake layer on a serving platter. Arrange the macerated strawberries in an even layer over the top, reserving a few berries for garnish. Drizzle half of the ganache over the strawberries. If desired, spread a layer of whipped cream over the fruit.
09 - Carefully position the second cake layer on top. Pour the remaining ganache over the cake, allowing it to flow naturally down the sides. Arrange the reserved strawberries on top as a garnish.
10 - Refrigerate the assembled cake for at least 1 hour to allow the layers and ganache to set properly. Slice into wedges and serve chilled.