fish and chips

1 large russet potato
or more if you love fried potatoes
oil for frying
1/4 cup (approx) cornstarch
2 cups flour
1 Tbs baking powder
generous pinch kosher salt
generous pinch black pepper
1 bottle cold beer (the darker the better)
3 or 4 ice cubes
1 1/2 lbs halibut or cod cut into strips

Make the batter by mixing flour, baking powder, salt, pepper and beer-- and  place in refrigerator to rest about 20 minutes.  
Heat the oil in a nice deep pot to 320.  Cut the chips into the shape you like. Make sure they are dry and then drop into the oil.  Let them cook until they are soft, but not browned.  You are going to cook twice. Remove from oil and let drain and cool completely.
Kick the heat up for the oil to 375
Fry your potatoes in batches until nicely browned.
Remove from oil, salt and let drain while you prepare the fish
plop the ice cubes into the dipping batter (you want a really cold batter)
dredge the fish in the cornstarch, then dip into the batter and immediately drop into the hot oil
serve hot with vinegar or tartar sauce
 or both