INGREDIENTS
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1 1/4 cups graham cracker crumbs (about 8 cookie sheets)
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2 tablespoons sugar
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1 tablespoon butter or stick margarine, melted
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1 large egg white, lightly beaten
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Cooking spray
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2 teaspoons grated lemon rind
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1/2 cup fresh lemon juice (about 3 lemons)
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1 (14-ounce) can fat-free sweetened condensed milk
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1 (6-ounce) carton lemon fat-free yogurt (such as Yoplait)
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1 1/2 teaspoons unflavored gelatin
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3 tablespoons water
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2/3 cup sugar
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1/4 cup water
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3 large egg whites
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1/4 teaspoon cream of tartar