The actor and his TV co-star Kevin Dillon were reported to have lent their backing to the new owners of Siro's in Saratoga Springs, a popular eatery next door to a racetrack in eastern New York.
But Connolly confesses he blindly handed over his cash after being tipped off about the deal by his business adviser, mortgage banker Keith Kantrowitz.
He says, "I've never been, which is ridiculous, I know. It's a legendary place. Siro's is the spot. My business manager told me to do it!"