The 33-year-old rifled a swerving shot into the top left corner to complete both his 16-minute brace and Juve's recovery in the testing 2-1 victory, FourFourTwo magazine reported.
Ronaldo, who now boasts seven goals in just 10 league appearances, praised his teammates' grit at the end of a week that included a 1-0 win over Manchester United in the Champions League.
"It was a tough game. We knew it would be complicated, even the coach anticipated it, but we gave a good answer," Ronaldo told Sky Sport Italia
"In the second half we pushed more, created opportunities and deserved the victory.
"I don't remember my goal very well, I'll have to watch it again! It happened very quickly. I was confident and went for it.
"This was an important week, the team was tired after Manchester, and we did well in difficult circumstances."
Ronaldo's decisive 70th-minute strike helped Juve avoid what would have been a second straight Serie A draw and earned him fresh plaudits from Massimiliano Allegri.
"We won thanks to the feat of an extraordinary player," the Bianconeri boss said.
"I hope they show the goal to kids so they try to imitate it. Children need more practice than theory."
Allegri conceded his Juventus side showed fatigue in the victory over Empoli.
"A team that wins 12 games out of 13 can be a bit tired," Allegri said.
"The team had started with the right approach, but after 10 minutes we slowed down the tempo of our passing and allowed a few too many Empoli counters.
"Empoli are tough to play against, so we had to be wary of the counter and that is how they scored the goal.
"In the second half, we created many chances and deserved the victory, but we have to tip our hats to Empoli for being so well-organised and impressive.
"It was a game that had to be won, regardless of the performance. Congratulations must be made to Empoli for how they played."