Paying tribute to his team, Hutchy - who also clinched victory in the earlier Supersport race - said: "The TAS boys have always been a top team, so it's nice to get them back where they belong."
Second place went to affable Bradford lad Dean Harrison on the Silicone Engineering Kawasaki following a titanic fourth and final lap battle with eventual third-placed man James Hillier. Hutchinson's main rival Michael Dunlop was over 15 seconds down at the end of the opening lap when he was forced to retire with gear-linkage problems on his MD Racing BMW.
But in truth, the Ballymoney man didn't look like he was going to have enough in the locker for on-fire Hutchinson - who has fought back to the top of the sport following an horrific crash at Silverstone in 2010 - in the Superstock encounter. Hutchy's five-second lead after just nine miles of racing was testament to his determination and belief.
"I just love riding this bike," said Hutchinson of the Tyco BMW S1000RR that has also taken him to second place in this season's British Superstock series.
Hutchinson stretched his lead over Dunlop sector-by-sector and said somewhat confidently afterwards: "I was pulling away from him before he retired, so after I got the board to say he was out I just took it steady."
The double success takes Hutchinson onto 13 triumphs at the Isle of Man TT and he is now just one behind the late, great Mike 'the bike' Hailwood.
Recounting the opening lap, which he openly admitted took a while to get nailed on, Hutchinson said: "I was a bit wide in a few places early in the lap as I was still in 600 mode.
"It was Glen Helen before I was fully dialled back into riding the stocker, but the BMW is an unbelievable machine and if everything carries on like this, Friday's Senior TT is going to be even faster."
Second-placed Harrison was delighted with his second podium of the day, fighting tooth and nail on the fourth and final lap to overhaul fellow Kawasaki mounted rider Hillier for the runner-up berth.
"I wasn't that confident on the first lap and was down in about seventh, but when I jumped up to P3 I just got the head down and I'm delighted with second place," said Harrison, who is having a great TT so far.
Quattro Plant Kawasaki rider Hillier was a little nonplussed with third place, but paid huge respect to race winner Hutchinson. He said: "I tried my best, but Ian (Hutchinson) made us all look stupid. He was on a different level and fair play to him."
Fermanagh's Lee Johnson was holding a top six position before retiring his East Coast Racing BMW at Sulby crossroads on the penultimate lap.
Michael Rutter (BMW), Gary Johnson (BMW) and John McGuinness (Honda Racing) completed the top six.
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