Right-back Janmaat, who impressed with the Netherlands during their run to the World Cup semi-finals, made his first appearance for his new club at the John Smith's Stadium on Tuesday, having joined from Eredivisie side Feyenoord last month.
Yet it was Cabella who stole the show with a superb lofted finish two minutes from time, after Huddersfield debutant Radoslaw Majewski and Jon Stead had turned things around following Emmanuel Riviere's opener.
Opportunities proved less frequent thereafter, but Majewski levelled in spectacular fashion in the 36th minute.
The hosts' attacking initiative paid off in the 66th minute when Stead's low strike deflected beyond Krul to give Huddersfield a lead they arguably deserved.
Their efforts were ultimately rewarded when Cabella, who also scored against Schalke on Sunday, latched on to a quick free-kick from substitute Ayoze Perez before lofting a wonderful chip over Joe Murphy and into the net to ensure the game ended all-square.
