Members of the Wahlberg family unveiled a new Wahlburgers food truck at the South Bay Center on Thursday, heralding the opening of the national fast food chain’s first ever Dorchester location. Brothers Donnie, Paul, Bob, and their mother Alma Wahlberg cut the ribbon in front of a faithful crowd of about 100 braving the rain and cold to get a taste of the first Wahlburgers served in the celebrity family’s hometown.

Due to officially open later this year, the South Bay restaurant location has been a long time coming, but Donnie feels the timing is finally right.

“You could say we saved the best for last,” he said. “We had to learn to get it right before we brought it back to Dorchester.”

For Donnie, the restaurant also represents a chance to give back to his community.

“To be part of bringing jobs to this neighborhood and investing back into the neighborhood that gave us so much, it’s just a great source of pride for all of us,” he said. “It keeps our roots planted where they belong, in this neighborhood.”

“This really means a lot to us,” added Alma.

Donnie also Facetimed in his brother Mark, who is currently filming his latest production “Instant Family,” for the ribbon-cutting ceremony. The food truck will be stationed at South Bay until Saturday, and will continue to make appearances in the Dorchester area until the full restaurant location opens in the fall.