"Siri Daly sneaks zucchini in her decadent frosted chocolate brownies...."
INGREDIENTS
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1/2 cup vegetable oil
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1½ cups granulated sugar
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1½ teaspoon vanilla
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2 cups all-purpose flour
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1/2 cup unsweetened cocoa powder
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1 teaspoon baking soda
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1 teaspoon salt
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2 cups shredded zucchini
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1 package chocolate chips
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1/4 cup unsalted butter
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6 heaping tablespoons unsweetened cocoa powder
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2¼ cups powdered sugar
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1/2 cup milk
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1/2 teaspoon vanilla