The 18-year-old striker scored his first goal with a cheeky kick-up inside the opposition penalty area before smashing the ball into the back of the net. His second came as a result of a powerful shot into the bottom corner from outside the penalty area and he saved the best until last curling the ball into the top corner from the edge of the box.
Unal now has seven goals in eight games for the Dutch second-tier outfit and the victory took NAC into 3rd place – 13 points behind leaders Sparta Rotterdam.
The Turkish international striker joined NAC in January after an unsuccessful spell on loan at Belgian side Genk.
The promising striker joined Manchester City on a a £2,000,000 move last summer but was unable to play in England due to lacking the necessary work permit.