1 1/2 c. sifted all-purpose flour
1/4 to 1/2 c. granulated sugar (to taste)
1 lg. egg, separated and yolk, lightly beaten
1/2 c. butter, softened

Preheat oven to 400 degrees.

Working on large flat surface, place the flour and sugar in the center and mix together. Form a small depression or well in the center of the mound. Add the beaten egg yolk and softened butter to the well, then blend these with the dry mixture. Mix the ingredients thoroughly, using your hands - there's no substitute for warm hands!

Press the dough into the pan with your fingers; while the crust won't be uniformly smooth, that is not particularly noticeable in the finished product.

Prick the crust several times with a fork to keep the crust from puffing up during baking. Place the springform in the oven and bake for 15 to 20 minutes or until light brown. Allow to cool.