• prep: 1 hr
• cook: 3 hr 20 min
• total: 4 hr 20 min

servings:

This tender buttermilk cake with rich orange cream-cheese frosting is sure to become your go-to for any festive occasion. The recipe can easily be adjusted to suit any party need: Make this single layer cake for birthdays, bake it as a sheet cake for backyard barbecues, or as a double-layer cake for even bigger celebrations.

• Nonstick vegetable oil spray
• 2 cups cake flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon kosher salt
• 3/4 cup (1 1/2 sticks) unsalted butter, room temperature
• 1 3/4 cups granulated sugar, divided
• 4 large eggs, separated
• 1 teaspoon vanilla extract
• 1 cup buttermilk
• 1/4 cup granulated sugar
• 1 vanilla bean, split lengthwise
• 2 (8-ounce) packages cream cheese, chilled
• 10 tablespoons unsalted butter, room temperature
• 1 teaspoon finely grated orange zest
• 1 tablespoon fresh orange juice
• 3/4 cup powdered sugar, sifted
• 6 ounces raspberries, divided
• Edible flowers (for garnish; optional)
• A 10-inch round cake pan

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