Key Lime Pie

Directions

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   1.
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   Preheat oven to 325.
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   In medium mixing bowl, beat egg yolks, gradually beat in sweetened condensed milk and lime juice.
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   Stir in food coloring if desired.
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   Pour in pastry shell.
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   2.
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   Bake 30 minutes.
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   Remove from oven.
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   Increase oven temperature to 350.
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    3.
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    Meanwhile, for meringue, with clean mixer, beat egg whites and cream of tartar to soft peaks.
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    Gradually beat in sugar, 1 tbsp at a time.
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    Beat 4 minutes or until stiff, glossy peaks form and sugar is dissolved.
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    4.
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    Immediately spread meringue over hot pie, carefully sealing to edge of crust to prevent meringue from shrinking.
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    Bake 15 minutes.
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    Cool 1 hour.
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    Chill at lest 3 hours.
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    Store covered in refrigerator.