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.”

Saint Patrick’s Day is approaching, which means one thing to McDonald’s fans: The return of the Shamrock Shake.

McDonald’s fans, brace yourselves because the food chain is about to reintroduce its seasonal classic—the Shamrock Shake.

McDonald’s is days away from officially launching the return of a seasonal favorite: the Shamrock Shake. The celebratory St. Patrick’s Day drink will arrive on Feb. 10, just over a month before the holiday arrives.

However, some McDonald's locations may have Shamrock Shakes as early as today, Feb. 4. Will Shamrock Shakes be at McDonald's permanently? No, they will only be at locations around

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.

Across the United States, McDonald’s hopes to raise $5 million through Shamrock Shake donations, which could provide 50,000 overnight stays for families staying at RMHC programs. Each chapter provides care, comfort and support to families, allowing them to heal together while their child receives medical care.

For fans of unusually colored beverages, the Shamrock Shake is making a comeback to restaurant chain McDonald’s (MCD) That is not the only

The Shamrock Shake is back at McDonald’s—and so is Grimace’s Irish uncle, Uncle O’Grimacey. And yes, there’s already merchandise available. Nostalgia is an easy way to draw eyes to whatever product you’re pitching to consumers,