Jennifer Garner Plays Gross Food Game 'Secret Ingredient' on 'Tonight Show' - Watch Here!

Jennifer Garner stopped by The Tonight Show Starring Jimmy Fallon on Thursday night (September 12) and participated in a hilarious, food-tasting game called Secret Ingredient!

The 47-year-old Peppermint actress joined host Jimmy and guest Jim Jefferies as they took turns guessing the unusual secret ingredient hidden in each course of a three-course meal.

Jennifer and the guys sipped on a mustard-infused cocktail, eat a bowl of chili with nutella, and even had a try of a toothpaste-topped cupcake.

Later in the show, Jennifer demonstrated how terrible she is at high-fiving, explained why her kids call her the “fun-killer” and discussed her involvement with Save the Children.

That same day, Jennifer Garner joined Michael Huisman at Save the Children’s The Centennial Gala: Changing The World for Children Gala at The Manhattan Center’s Hammerstein Ballroom after lighting the Empire State Building red in honor of Save the Children earlier in the day.

FYI: Jennifer is wearing a J. Mendel silk chiffon gown at the gala.

Click inside to watch the rest of Jennifer Garner’s appearance…