Best is a thermometer.
375 is the ideal temperature for fried foods. Chicken, because
of its thickness, will take a long time. If you get to 325 or lower,
the oil absorption of the coating increases and you get 'greasy' instead of 'crisp'.
With no thermometer, drop a drop of water from your finger into
the oil, if it sizzles you are ready to go. If it starts to smoke,
back it off, it is too hot and you will burn the crust and ruin the oil.
I usually 'sautee' as opposed to 'deep fry'. When you deep fry,
you have a deep pan and the product gets immersed in oil.
This is more the traditional 'Southern Style' method. Peanut oil
is the best but it is expensive, use a peanut oil blend or canola
oil if you can. Fully hydrogenated vegetable or soy oils
like a Crisco are least desirable because of trans-fat content.
When I sautee, the method I prefer, I use 1/2 butter and
1/2 Olive oil. The oil increases the temperature tolerance
of the butter so it doesn't burn as easily. I use this method
with boneless chicken breast meat sliced so it is not thicker
than 3/4" or so.
I then dredge the chicken in an egg wash (a couple of eggs
beaten with a fork with a small amount of milk added) and
then dredge through a bowl of seasoned breadcrumbs
(or unseasoned crumbs I season myself with pepper and salt).
You can also sub cornmeal for that for a more Southern
feel, y'all.
Heat the olive oil and butter in the pan, watching carefully
you don't burn it. Throw in the breaded chicken pieces and
sautee both sides till golden. Put aside on a serving plate as
the peices get done. Do a panful at a time. Refresh the oil in
the pan each time so it doesn't get burnt.
Put all the browned chicken on the serving plate in the oven
at 350 degrees for 20 mins or so to keep it warm and crispy
and cook through. Then finish your other dishes, salad and
side dishes. By that time all is ready to go, the chicken should
be perfect.
Sub codfish, haddock or tilapia if you are in the mood
for lightly fried seafood.
Enjoy.