Vanilla Bean Cake with Balsamic Roasted Strawberry Buttercream

"Three layers of a tender vanilla cake flavored with vanilla bean paste for a more concentrated flavor and real specks of vanilla bean! It's the perfect canvas for the flavor of these balsamic roasted strawberries. Roasting strawberries helps to bring out their flavor and the balsamic vinegar is the perfect complement for the sweetness of the berries and frosting. The buttercream is made with puree from the roasted strawberries and the cake is frosted with lovely rosettes of the pink buttercream. To finish it off, it's topped with a mountain of balsamic roasted strawberries!"