Place the water, butter, and lard in a saucepan, heat gently until a low boil..
Place flour and salt into a large bowl, and whisk in the egg and oil.
Add the melted fat mixture, and stir together with a wooden spoon, or cut in with knives. Make sure to scrape the bowl while combining the dough.
Gently knead for 1-2 minutes. You should end with a greasy dough that's smooth and shiny.
Form a ball, cover with clingwrap, and chill for an hour.
Save 1/3 for the top portion. Roll the big part to 13" diameter to make a 9" deep-dish pie, or 3 x 6.5" or 2 x 8" pies.
Bake at 375F for around 25 minutes, or until the top of the pie is golden brown.