Linne Tart & Pastry Crust

This is a fantastic, buttery crust.  Not quite suitable for quiche's, but great for a tart or pie.  Not flaky, more granular, shortbread-like.

Ingredients

1 cups (130 g) all purpose flour
1 small egg
1/2 tsp. salt (skip if using salted butter)
1 tsp. sugar (for sweet recipes, otherwise skip)
1 stick unsalted butter
1/4 cup (~60 ml) sour cream (full fat, NOT light sour cream)

Method

Oven @ 350° F.  It doesn't need pre-baking and works fine baking all at once.  Put all the ingredients for the crust into a bowl and mix with a pastry blender until you have a firm, doughy consistency.  You can chill for 20 minutes, but its not really necessary.  Roll out and press into either a 10 inch spring-form cake pan or a equal sized tart pan.  If you use smaller than 10 inches, you'll get a thicker crust.