Frozen Key Lime Pie

Ingredients

• 4 egg yolks
• 1 (5 ounce) can sweetened condensed milk
• 0.25 cup key lime juice
• 0.25 cup white sugar
• 0.25 teaspoon cream of tartar
• 1 (9 inch) prepared graham cracker crust

Steps

1. Beat egg yolks in a large bowl until very light and fluffy. Add sweetened condensed milk; beat until doubled in volume. Beat in lime juice; refrigerate yolk mixture until ready to use.
2. Beat egg whites in a large glass or metal bowl with an electric mixer until foamy; gradually add sugar and cream of tartar, continuing to beat until stiff peaks form.
3. Gently fold egg whites into yolk mixture until well blended; pour into crust and freeze. Serve frozen.