
This authentic key lime pie starts with a homemade graham cracker crust, then a creamy sweet and tart filling, and fluffy toasted meringue. This is a cool and refreshing dessert, and perfect for summer!
Preheat the oven to 350°F (180°C). Grease a 9" pie dish.
Combine sugar, cornstarch, and salt in a medium saucepan. Stir to combine and then mix in heavy whipping cream, milk, egg yolks, and lime juice. Over medium heat, whisk to combine.
Preheat oven to 425°F (220°C). Beat egg whites in a large bowl until frothy. Add cream of tartar and continue beating until stiff peaks form.