INGREDIENTS
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60 sponge-cake-type ladyfingers (from three 3-ounce packages)
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2 3/4 cups chilled whipping cream
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4 ounces unsweetened chocolate, chopped
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1/4 cup sugar
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1 cup plus 2 tablespoons powdered sugar
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1/2 cup unsalted butter, room temperature
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2 teaspoons vanilla extract
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1 teaspoon ground cinnamon
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1 ounce semisweet chocolate, grated