What you'll need for the crust:
225 grams (or 1/2lb.) of softened butter
1/2 cup sugar (I used raw cane sugar, the blonde stuff in the US)
1/8 teaspoon salt
2 cups flour (I used whole wheat, in a vain attempt to pretend that this is a healthy recipe. Ha!)

Now get started on the filling, which is, in my mind, the best part.

What you'll need:
6 large eggs
2 cups sugar (less than the original recipe, I like my lemon bars very tart. Again, I used raw cane sugar)
2 tablespoons lemon zest (I used about 4 lemons)
2/3 cup lemon juice (I used 6 lemons. Again, I like them tart.)
2/3 cup flour (yes, whole wheat. Laugh all you want, it's usually all I have on hand)