Chocolate-Covered Strawberry Cakes

butter (at room temperature)

granulated sugar ((1 cup))

brown sugar ((1 cup packed))

eggs (at room temperature)

vanilla extract

buttermilk ((1 1/2 cups) at room temperature)

sour cream ((3/4 cup) at room temperature)

water OR brewed coffee (at room temperature)

all-purpose flour ((2 2/3 cups))

sifted unsweetened cocoa powder ((1 1/2 cups))

baking soda

salt

egg whites

granulated sugar ((2 cups))

unsalted butter (soft but still cool)

vanilla extract

salt

strawberry puree (strained of seeds (see Note below))

Pink gel food coloring (I used Americolor Soft Pink)

semi-sweet chocolate (finely chopped)

heavy cream

fresh strawberries

large (beautiful strawberries, preferably long-stem variety)