At long last, the Mets finally can say the words with confidence: Welcome to the Juan Soto Era in Flushing.

It took a little while. Longer than anyone possibly could have anticipated. The Mets officially signed Soto in December, but the generational slugger who convinced mega-billionaire owner Steve Cohen to give him that 15-year, $765 million contract didn’t really arrive until six months later.

Following the false starts of April and May, when Soto showed flashes but not sustained brilliance, we can now circle June as the hard launch of Soto’s blue-and-orange superstardom. That continued with a bang Wednesday, appropriately enough on Fireworks Night at Citi Field, where Soto blasted a pair of home runs to power the Mets’ desperately-needed 7-3 victory over Atlanta.

“We witnessed greatness today,” manager Carlos Mendoza said. “History here.”

Mendoza was referring to Soto passing Hall of Famer Jimmie Foxx for the most multi-homer games (27) by a player before his 27th birthday. In the grand scheme, Soto will end up owning plenty of records in paving his own way to Cooperstown, but as a student of the game, he savored this particular one on the spot.

It happened in the seventh inning, when Soto hammered a fastball from Atlanta reliever Austin Cox, then momentarily admired the 396-foot blast as the ball cleared the right-centerfield fence. Soto raised his right arm as he circled first base, later admitting the adrenaline surge from the achievement, which also put the Mets convincingly ahead, 7-1, at the time.

“I knew what I was chasing in that at-bat,” Soto said. “When I saw the ball gone, I felt really emotional right there. Definitely still winning the game, helping the team increase the lead. But most important for me was, when you look back at what I did, and what I’ve been doing these past years, I think that’s really special for me.”

This is why Soto is a New York Met. Not to occasionally wow the crowd, or pass the baton. Soto is supposed to be the show, and he’s owned the spotlight in June, as he’s also become the first player in Mets history with 10 homers, 20 runs and 20 walks in a calendar month. Over his last 25 games, dating back to May 30, Soto has a slash line of .333/.486/.774 with 11 home runs and 20 RBIs. His 1.260 OPS leads the majors during that stretch.

After hitting .241 with three homers in April, and .219 with six homers in May, this is a whole different Soto in June. Or more accurately, the real Soto, and he’s enjoying this as much as the Citi crowd of 38,275 did Wednesday night.

“It’s been great,” Soto said. “I think it’s starting to happen. My swing, everything, is going the right way. That’s just personal, because at the end of the day, we’re trying to win games. It doesn’t matter if I hit two, three or 10 homers. What I care about is winning the game.”

If Soto keeps doing Soto things, the Mets are going to keep winning. Consider the previous stretch, when they lost 10 of 11 games, an aberration, an outlier. It just seems impossible for Soto to rake in the middle of this lineup and the Mets come up empty otherwise. On Wednesday, Soto led off the fourth inning with a 413-foot rocket off Atlanta starter Didier Fuentes that spearheaded a five-run outburst to put the Mets ahead for good.

After months of Soto hitting into rotten luck, or having his balls die in the frigid winds off Flushing Bay, the frustration has evaporated. He’s solved the problem of smacking line drives into opponent’s gloves by airmailing them over the fence. Soto is all smiles now. And for good reason.

“Now I just try to hit it a little harder,” Soto said, grinning. “Try to find those gaps, try to find those holes. Finally the cold weather is gone, so I can have fun now.”

The same goes for the Mets, whose confused fans were feeling a little bit of buyer’s remorse after seeing Soto be fairly ordinary in April and May. They thought they were getting the pinstriped Terminator from last season, and when Soto showed up as something less, they wondered where that Bronx guy went. Well, that Soto is back, and looking very comfortable in Queens.

“I think it’s just his consistency,” said Clay Holmes, his former Yankees teammate. “It literally feels like every at-bat’s the same. He’s a guy that walks so much, but when he swings, there’s a barrel almost every time. Sure some hits weren’t falling early, but to me, the at-bat quality felt the exact same. He was hitting balls hard. He just felt like Juan Soto up there. Truly, it’s incredible.”

Only now the Mets are getting the full Juan Soto Experience. Cohen is getting his near-capacity crowds at Citi almost every night and his team is benefiting from the full value from the game’s lone $765 million slugger. So what if it’s June 25. Better late than never.

“Impressive,” Mendoza said. “That’s why you buy a ticket to a baseball game. To see something like that is a show. You pay to watch this guy get up to the plate and put together a big-league at-bat. Just his presence, as a fan, I’d be watching every game from the stands too.”

And now, finally, the real Soto has arrived.