After missing out to US star Lindsey Vonn in last weekend’s downhill in Germany, Gut edged out local favorite Sofia Goggia by 0.05 seconds, crossing the line in a time of 1:37.08 seconds.
Slovenia’s Ilka Stuhec, the leader in the World Cup women’s downhill standings, was third.
“The top wasn’t really clean and I didn’t trust myself to push 100% on the skis, so after the second split I really had the feeling that I had to change something,” Gut said after her 23rd career World Cup win.
“I tried to ski a little bit smoother and it worked out. I’m happy. I knew that if I did what I can, I could be really fast,” Gut added.
Competing for just the third time since fracturing her arm last November, Vonn was unable to repeat the heroics of the previous weekend, crashing out of the race at the same spot where she had fallen in Friday’s practice run.
The 32-year-old emerged unscathed from the fall, and was able to take part in Sunday’s super-G, finishing 12th.
Stuhec won her first World Cup race in the discipline, with Goggia second.
Olympic champion Anna Veith was third for her first podium finish since 2015.
American slalom specialist Mikaela Shiffrin finished a surprise fourth to extend her overall lead to 80 points over Gut, who failed to finish after hitting a gate with her arm.
The Swiss star had won her previous three super-G races this season, and leads the standings by 44 points from Tina Weirather — who was seventh.
Meanwhile, Marcel Hirscher extended his overall men’s lead with his 20th giant slalom victory at Garmisch-Partenkirchen Sunday.
The Austrian’s main rival Alexis Pinturault was fourth behind Sweden’s Matts Olsson — whose second was his best career finish — and Germany’s Stefan Luitz.
With two races to go, Hirscher leads the Frenchman by 97 points in the race for the discipline’s crystal globe, while he is 432 points ahead of Norway’s Henrik Kristoffersen in the overall standings as he seeks a sixth successive crown.
In Saturday’s men’s downhill at Garmisch-Partenkirchen, Austria’s Hannes Reichelt skied to victory ahead of Italy’s Peter Fill, with Switzerland’s Beat Feuz taking third.
Fill leads the standings by 32 points from Norway’s Kjetil Jansrud, who was fifth.