I like a pie shell made from several cups of animal cracker crumbs whirred into a sandy texture, mixed with a stick of melted butter and 1/4 cup of brown sugar and a dash of salt. Mix well and press into the pan.
Preheat oven to 350
Mix together the condensed milk, egg yolks, lemon juice, and lemon zest until well combined. Pour the mixture into the pie shell.
Bake 10-15 minutes until the mixture has a little skin.
While it's baking, use an electric mixer with a whisk attachment to beat the egg whites until it has soft peaks. Then gradually add the sugar until it has stiff peaks.
When the lemon layer comes out of the oven, spread the meringue over the top and make a little peaks all over it with a fork or spatula.
Return the pie to the oven and bake for another ten minutes or so until the meringue is slightly browned.