Basic Shortbread Pastry Dough

2 cups all-purpose flour
14 tablespoons butter
1 large egg, lightly beaten
2 tablespoons sugar
1 tablespoon chilled heavy cream
2 teaspoons fresh lemon juice
1 teaspoon salt

Combine ingredients in food processor and pulse until dough starts gathering in clumps. Turn out on countertop and gather into mound.

Use for sweet tarts and pie crusts.

From Fine Cooking.