The Montpellier striker has shot to prominence in his homeland this season, with his 16 goals so far making him by some distance Ligue 1's top marksman.
His exploits have lifted Montpellier to the league summit ahead of big-spending Paris St Germain and also prompted France coach Laurent Blanc to hand him his first ever call-up to the national side for November's match with Belgium.
Wednesday night marked the 25-year-old's third cap for his country, and he duly underlined his burgeoning promise with the opening goal in the 21st minute.
And he revealed afterwards that his first international strike will not be a moment he will forget in a hurry.
"I'll take a lot of positives from tonight's match. It was my first start, my first goal, and we won away to Germany, who are ranked second on FIFA's list. I'll savour it in the days to come," he told reporters.
"After I scored all I wanted to do was three laps of honour, but I kept cool."
Giroud is coming into form just in time to be in the forefront of Blanc's thoughts ahead of this summer's Euro 2012 tournament, and he added: "Now I just need to keep working ahead of the announcement of a very important list in May."
Giroud's first-half strike was the catalyst for France to maintain their impressive unbeaten record, which now stands at 18 matches dating back to September 2010.
Florent Malouda added a second goal in the 69th minute to leave the visitors well in control, and although Germany pulled a goal back through Cacau it was not enough to deny Blanc a notable scalp.
"It was a beautiful game of football and I really enjoyed watching it," Blanc told reporters.
"It was an open match and we had studied the German game well. We knew they were strong in attack, but we managed to reveal their defensive weaknesses."
The coach admits the revival under his stewardship has given him much to ponder between now and the summer.
"We played with a remarkable team spirit and things will be tight for places in the squad for the Euro, but those who played tonight - including Olivier Giroud and Mathieu Debuchy - scored some big points," he said.
"Between now and May a lot will happen. I just told the players to stay healthy.
"It's great that the team won, but it doesn't change the work we have to do ahead of the Euro to reproduce this kind of performance in competition, something France hasn't managed to do for some time."