Mocha-Orange Cheesecake

INGREDIENTS

• Orange slices (optional)
• 2 tablespoons instant espresso powder
• 1 1/2 cups sour cream
• 1/3 cup frozen orange juice concentrate, thawed
• 6 tablespoons (packed) powdered sugar
• 3 large eggs
• 21 Pepperidge Farm Orange Milano cookies (10 ounces), broken into pieces
• 1 1/2 teaspoons instant espresso powder
• 2 tablespoons coffee liqueur
• 4 teaspoons instant espresso powder
• 2 8-ounce packages cream cheese, room temperature
• 2 tablespoons Grand Marnier or other orange liqueur
• 4 ounces bittersweet (not unsweetened) or semisweet chocolate, chopped
• 3/4 cup sugar
• 1/4 cup (1/2 stick) unsalted butter, cut into 1/2-inch pieces
• Chocolate curls (optional)