Grumbeere refer to potatoes in Saarland dialect. Potatoes or Grumbeere play an important role in Saarland's cuisine. Many of its specialties are made with potatoes, namely the Geheirade, Kerschdscher, among others.
Potato is also known as Erdapfel, Herdöpfel, Grumbeer or Grundbirne and Krumbere in Germany, Switzerland and Austria.