That is right guys! Another installment of lemon deliciousness! Once I saw this I had to share it. This is such a classic and easy recipe. Go ahead and try to make it homemade. It is so simple and easy, all you need are four simple ingredients: Lemons, Sugar, Egg yolks and Butter. The main purpose of egg yolks is to thicken the curd and make it smooth and creamy. Once you have the right sweetness you truly want, you can make it into anything. Use it as jam, filling for pastries, there are so many different uses for homemade lemon frosting. Check out the recipe here.