Rijstevlaai
In Dutch and Belgian cuisine, rijsttaart/rijstevlaai (Dutch) or tarte au riz (French) (German: Reisfladen, all translate to “rice flan”) is a pie with a filling based on rice pudding. It is native to Verviers and popular around the wider region of Eastern Belgium, south-eastern Netherlands and the German region around Aachen. Typically they are made 'single-crust'—with no layer of pastry covering the top. Rijstevlaai is a type of vlaai.
Source: Wikipedia