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Vegetable oilcooking spray |
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8 plain or almond biscotti, broken into 1-inch pieces (5 to 6 ounces) |
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5 tablespoons unsalted butter, chopped into 1/2-inch pieces, chilled |
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1/4 cup unsweetened cocoa powder |
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1/4 packed cup dark brown sugar |
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1/2 cup raspberry jam or preserves |
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1/2 cup semisweet chocolate chips, such as Ghirardelli |
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1 cup mascarpone, at room temperature (8 ounces) |
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1 cup sour cream, at room temperature (8 ounces) |
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5 large eggs, at room temperature |
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1 1/2 teaspoons pure vanilla extract |
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