3 pastry cream etc Recipes

butter, sugar (depending how sweet you want the lemon layer), egg yolks, slightly beaten, juice from fresh lemons to make 1/3-1/2 cup, zest from 1 lemon, pre baked pie shell (you can use pastry, graham, sugar cookie, even chocolate, to your preference), vanilla ice cream (a lesser quality ice cream is actually fine to use, here...i suggest just a plan vanilla, though, not vanilla bean, french vanilla, etc)slightly softened(until just spreadable)

butter or 2 oz margarine, water , scant, flour , heaping, eggs, beaten, sugar (optional)