
In a large bowl, combine the dry ingredients. Cut in the butter until it resembles a coarse meal. Add ¼ cup very cold water and stir until large clumps form. Knead. If necessary to bring the dough together, you can add 1 tablespoon water.
From Smitten Kitchen.
If you want it a little more casual, making a shortbread base in a rectangular pan and topping with the cranberry sauce and pecan streusel could be a great option.