1
: Preheat oven to 325ºF (160ºC).
2
: Whisk together egg yolks, sweetened condensed milk, lime juice and food colouring if desired. Pour into prepared pie crust.
3
: Bake in preheated oven for 30 minutes. Cool completely. Chill 1-2 hours. Serve topped with whipped topping or whipped cream. Garnish as desired.