Name: Chocolate Sheet Cake With Crème Fraîche Frosting
Yield: 24 Servings
Ingredients: ½ cup (1 stick) unsalted butter, room temperature, plus more for pan; 2 cups all-purpose flour, plus more for pan; 6 ounces bittersweet chocolate, chopped; 1 cup brewed coffee; ⅔ cup unsweetened cocoa powder (not Dutch process); 3 large eggs, room temperature; 1 cup buttermilk, room temperature; 2 teaspoons vanilla extract; 1¾ teaspoons kosher salt; 1½ teaspoons baking powder; 1½ teaspoons baking soda; 2½ cups (packed) light brown sugar; ¼ cup vegetable oil; 12 ounces cream cheese, room temperature; ¾ cup (1½ sticks) unsalted butter, room temperature; ¾ cup crème fraîche, room temperature; 3 cups powdered sugar; 1 teaspoon vanilla extract; ¼ teaspoon kosher salt

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Alex Lau

Room temperature cream cheese and butter are key to a smooth frosting (cold ingredients will form hard beads). Take them both out of the refrigerator three hours ahead of time.

Recipe notes