Brownstone Front Cake
Creamy Frosting Substitute
Stir together 2 cups granulated sugar, 1 ½ cups evaporated milk (from 1 [12-oz.] can), and 1 cup (8 oz.) unsalted butter, at room temperature, in a large saucepan over medium until sugar is dissolved (butter will not fully incorporate). Bring to a boil, without stirring, and cook, stirring often, until a candy thermometer reaches 238°F (soft ball stage), about 30 minutes. Pour into a large heatproof bowl, and beat with an electric mixer on medium speed until frosting is smooth, but pourable, about 2 minutes. Place 1 cake layer on serving plate; pour about ⅔ cup frosting over top, allowing some to drip down sides. Repeat with remaining 3 cake layers and frosting. Let stand until frosting is cool and set, about 15 minutes before slicing.