1 1/2 cups flour of your choice (I use whole wheat flour usually)
1/2 cup unsalted butter (if you use salted butter, omit dash of salt)
1/4 cup sugar
1 egg
dash of salt
Blend above ingredients in a food processor, or with your hands. Don't "cut" the butter into the flour using knives or forks as some books say. This won't work nearly as well as your fingers. Add cold water to desired texture, about 1/4 cup.