NOTE: BAKES at 425*, & 350* Use a deep dish pie plate for this recipe (mine is 10"x 2.5") If you do not have a large pie plate, I would opt for a 'cobbler' treatment of these ingredients in a 9x9x2 glass pan.
CRUST: Combine flour & (chilled) butter until crumbly. Stir in: ground nuts (prefer pecans) & orange zest (from one large fruit or two cuties). Add 1 Tbl vinegar; use apple cider if its on hand) to egg yolk, stir both into crumbs. Add ice water 1 Tbl/ time until dough is firm.