Ingredients

4 ounces bittersweet (not unsweetened) or semisweet chocolate, chopped

• 1 1/2 cups all purpose flour
• 1/2 cup unsweetened cocoa powder
• 1 teaspoon baking powder
• 1/2 teaspoon coarse kosher salt
• 1/4 teaspoon baking soda
• 1/2 cup whole milk
• 1/2 cup plain whole-milk yogurt
• 1 1/2 cups (packed) golden brown sugar
• 3/4 cup (1 1/2 sticks) unsalted butter, room temperature
• 2 teaspoons dried lavender blossoms,* finely ground in spice mill
• 4 large eggs

Buttercream frosting

• 8 ounces bittersweet or semisweet chocolate, chopped
• 1/2 cup unsweetened cocoa powder
• 7 tablespoons (or more) water

• 1 1/2 cups (3 sticks) unsalted butter, room temperature
• 4 cups powdered sugar, divided
• 1 tablespoon grated orange peel
• 2 teaspoons vanilla extract
• 1/2 teaspoon coarse kosher salt
• 1 tablespoon Grand Marnier or other orange liqueur

• Chocolate curls

Description

A Subtle Hint Of Lavender Accents This Lovely Dessert. It Can Also Be Left Out If You Prefer.

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