Actress Reese Witherspoon arrives at Girls Inc. Los Angeles Celebration Luncheon at The Beverly Hilton Hotel on November 16, 2016 in Beverly Hills, California.
Credit: Joshua Blanchard/Getty

It's no secret that Reese Witherspoon and her 17-year-old daughter Ava Phillippe are practically twins, but they aren't the only two members of the star's family who bear a striking resemblance to each other.

The actress took to Instagram today to share an adorable photo of herself with her own mom, Betty Reese, and her darling 4-year-old son, Tennessee Toth, and it's more than clear that the trio is related. "Fun day in the kitchen with Grandma," Witherspoon captioned the snap, which shows the mother-of-three smiling as her youngest child licks a frosting-covered spatula. It appears as if the look-alike group is having a blast while baking up some pre-Valentine's Day treats.

VIDEO: 10 Times Reese Witherspoon Was the Coolest Mom

Back in December, we were reminded once again how much Witherspoon's kids resemble her when the 40-year-old brought her whole brood to the premiere of her animated movie Sing in Los Angeles.

The apple definitely doesn't fall far from the tree.