Samoas Cupcakes

sour cream1 teaspoon baking soda2 cups flour½ cup Dutch process cocoa powder1 cup unsalted butter1 cup granulated sugar½ cup light brown sugar1 teaspoon salt2 eggs, plus 2 egg yolks1 tablespoon vanilla

granulated sugar2 tablespoons water2 tablespoons butter6 tablespoons of heavy cream½ teaspoons of kosher salt1 cup of unsalted butter, room temperature1 tablespoon vanilla extract11/2 cup powdered sugar

sweetened coconut

milk chocolate