"It is my recipe. My kids love milkshakes. If you are a vegan you don't drink milk, so I wanted to do something vegan," said Anderson. "I think it is important for kids to eat healthy. You just have to expose them to it and they make their own decisions."
The event took place at the Millions of Milkshakes store in West Hollywood.
PETA is calling her shake a "cow-friendly concoction."
The former "Baywatch" babe found herself in the bottom two at the start of the season, but has slowly made her way back up the leaderboard.
Anderson performed a very physical Paso Doble for round three of "Dancing With the Stars." It left her in the middle of the pack on the judge's scoreboard.
You can watch Anderson on "Dancing" Monday at 8 p.m. on ABC7.