One of the best izakaya style dishes. Low cost, low class, and delicious.
With recent discussions of mouth impregnations by eating raw squid and antibiotic resistant viruses from Korean squid, there may be some fear towards this trending ingredient. But rest assured, separating the legs from the innards will eliminate the possibility of insemination, and deep-frying will hopefully kill off most bacteria. In addition, this dish does not suffer too much from over-cooking, if you are paranoid and tend to cook the shit out of your food.
To make, just marinate in a soy sauce, sugar, sake (or mirin), and ginger mixture for 20 minutes or so. Drain, and toss in cornstarch and flour mixture (50-50 is fine). Let it rest, and meanwhile, heat up oil to about 180c or 360f. Fry until golden. I like double frying, so I throw it in until the batter solidifies, take it out, wait for the oil to heat up again, and throw it in until the color becomes right.
Serve with a wedge of lemon.