INGREDIENTS
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Non-stick vegetable oil spray
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1 cup walnuts (optional)
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3 large eggs
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1 cup vegetable oil
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1¼ cups granulated sugar
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½ cup (packed) light brown sugar
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1 tablespoon vanilla extract
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3 cups all-purpose flour
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1½ teaspoons kosher salt
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1 teaspoon ground cinnamon
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1 teaspoon baking soda
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½ teaspoon baking powder
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¼ teaspoon freshly grated nutmeg
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3½ cups coarsely grated zucchini (from about 1 lb. zucchini)
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1¼ cups old-fashioned rolled oats, divided
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3 tablespoons raw sugar