Ingredients
Yield: one 9-inch cake
3/4 cup (170g) unsalted butter, softened to room temperature
1 cup (200g) light brown sugar
1 large egg + 1 egg yolk*
2 teaspoons vanilla extract
2 cups (250g) all-purpose flour (careful not to overmeasure)
2 teaspoons cornstarch (aka cornflour)
1 teaspoon baking soda
1/2 teaspoon salt
1 and 1/2 cup (225g) semi-sweet chocolate chips
Milk Chocolate Frosting:
1 and 3/4 cups (210g) confectioners' sugar
1/4 cup (32g) unsweetened cocoa powder
1/2 cup (115g) unsalted butter, softened to room temperature
2 Tablespoons (30ml) heavy cream or half-and-half*
1 teaspoon vanilla extract
salt, to taste
Preparation