McDonald’s is bringing back its beloved Shamrock Shake with the help of an old friend. The minty green milkshake will return to restaurants on Monday, Feb. 10 — and the chain’s Uncle O’Grimacey character is returning after a decades-long hiatus to help kick off the annual “Shamrock Season.”

McDonald's announced when the Shamrock Shake will return. Here's what to know including what it tastes like, ingredients and how many calories it has.

McDonald’s signature Shamrock Shake is set to return for limited time this year. The shake will be sold at participating McDonald’s restaurants nationwide starting Monday, Feb. 10. The Shamrock Shake is made with vanilla soft serve blended with McDonald’s minty Shamrock Shake syrup and topped with whipped cream.