This is THE original recipe from Joyce Hardcastle who won the Ultimate Nanaimo Bar Recipe contest in 1986; no variations, just the exact ingredients she used An offset spatula comes in handy for this. These are very rich and sweet, one small bar is enough! If you don't have Birds Eye custard powder it totally changes the taste and I wouldn't make it if there was non in the kitchen. Why make the original if you do not use the original recipe. A tin of this product lasts forever and is a nice topping for stale cakes or a nice warm bowl of real comfort food! Someone mentioned the crust was greasy....If the crust ingredients are added in order the crust has never been greasy. Or, add 1/4 cup extra graham cracker crumbs. The ratio of butter to the other ingredients isn't a lot. If you omit any crust ingredient and use the same amount of butter called for in the recipe it won't turn out the way it should. This is one recipe that should never be altered!