Oklahoma State didn't panic when it was down by 17 points to eighth-ranked Texas A&M at halftime on Saturday.
It wasn't anything new to the seventh-ranked Cowboys, after they bounced back from a big first-half deficit last year to beat the Aggies.
"We came out confident in the second half," Blackmon said. "We knew we could come back if we played our game and executed the game plan (and) that's what we did."
The Aggies built a 20-3 halftime lead before the Cowboys (4-0, 1-0 Big 12) took advantage of three Texas A&M turnovers and numerous penalties to reel off 27 straight points to take a 30-20 lead.
"The way they handled that situation was beautiful," Oklahoma State coach Mike Gundy said of his team's second half. "And the win makes it's special. The way they fought back as a group shows a lot about their character and who they are."
Jeff Fuller caught a 4-yard touchdown pass with 2:20 remaining for A&M's first score since the second quarter to get A&M within 30-27.
A&M's defense forced a punt and the Aggies (2-1, 0-1) got the ball back with almost two minutes remaining, but Ryan Tannehill threw his third interception to seal the Cowboys' win.