Hj. Choriah Nasution opened the Pondok Paranginan Restaurant in 2002. Soon, this restaurant, which serves traditional Mandailing specialities was invaded by visitors from Natal to Panyabungan, even people from Panyabungan itself. The dishes include free-range chicken and smoked gold fish cooked using traditional spices.

In 2007, Hj. Choriah tried out a new menu which dramatically increased the numbers of visitors. The new menu was Batok Coffee or kopi batok. Now, this was a new invention. Kopi Batok can't be found in any dictionary. Kopi Batok is coffee served in a glass made from a small coconut. The coffee is original Madina coffee. Palm sugar is used instead. The spoon, which is a stick of cinnamon, is another detail, making this coffee different from the rest. The coffee is served in an open, cool,  area overlooking the Aek Singolot river. Across the river, wild boars walk unheedingly, through the jungle of rubber trees.    

The idea for this unique recipe was inspired by Hj Choriah Nasution's grandparents, who were typical village dwellers, who still obeyed traditional custom. In those times, before going to work the fields, people used to make coffee made only of smoked coffee leaves, "In those times, there wasn't any coffee powder, so they used smoked, dried coffee leaves. The leaves were soaked until they broke up in the boiling water. Instead of water, they used palm sugar water. And because they didn't have a spoon, they used cinnamon sticks taken straight from the bark of the cinnamon tree,"  Hj. Choriah Nasution explains.