Button, who was taking in his 200th race at the top level, ran strongly throughout, and in the end he put in another great performance in mixed conditions to claim his second win of the season.
Speaking at the finish he was quick to pay tribute to his team for making the right calls during the 70-lap grand prix, the eleventh round in the 2011 F1 World Championship.
“I want to say a big, big thank you to the team today. The car worked a treat in all conditions, and we made all the right strategy calls. We deserved this win and it felt great to stand alongside my race engineer Dave [Robson] on the occasion of his first appearance on the podium,” Button reflected.
“The race was a brilliantly eventful one. I had a good battle with [my team-mate] Lewis [Hamilton] when we were running one-two.
“We were both driving on the limit and the gap ebbed and flowed, depending on the traffic. It was good fun and I was sorry that we weren't standing up there on the podium together at the end of it all.
“This was the perfect way to celebrate my 200th Grand Prix, and the team can enter the summer break with a spring in its step. We know we have a good car, so let's enjoy our holidays and come back even stronger at Spa-Francorchamps. I'm excited about that race already.”
McLaren boss Martin Whitmarsh meanwhile was delighted to see 'his' team chalk up another victory, especially as it comes just seven days on from the triumph at the Nurburgring.
“What a way for Jenson to celebrate his 200th Grand Prix! Just brilliant! Fantastic!” Whitmarsh added.
“Those were very, very difficult conditions this afternoon, and it was easy to get it wrong, but Jenson drove a great race. His measured yet combative drive was a testament to how naturally smooth and smart he is on the racetrack, and he really deserved this win.
“This was McLaren's 10th win in Hungary – a record – and it comes on the back of Lewis's win in Germany last weekend. We've won three of the past five Grand's Prix, and have scored 119 world championship points over the same period.
“The team can now take a well-deserved break before attacking the second half of the season.”