The 27-year-old defender struck for their 1-1 draw in Turin.
“It was an emotional moment, especially as I am a Juventino," grinned Blanchard to Tuttosport.
“Just think, only three months ago I was in Berlin with the Viking ultras, all painted in black and white, to attend the Champions League Final against Barcelona.
“It's incredible. I dedicate the goal to my family and my girlfriend Fulvia, who was in Turin. This is a dream from childhood come true."