Key Lime Pie

Ingredients

• Crust (or use a commercially prepared graham crust such as Keebler Ready Crust Graham Cracker Pie Crust)
• 1 1/2 cups graham crackers, crushed
• 1/4 cup sugar
• 5 tbsp butter, melted
• 1 can (14 oz) nonfat sweetened condensed milk
• 1/2 cup fresh lime juice
• 1 tbsp lime zest, minced
• 1 egg
• 2 eggs, yolks and whites separated
• 1/4 tsp cream of tartar
• 2 cups low-calorie whipped cream (such as Cool Whip)
• 1 lime, thinly sliced (optional)