Membrillo is the Spanish for Quince paste, a confection made of quince fruit , lemon juice and right amount of sugar. In Spain, Membrillo is generally paired with a number of cheeses, but most famously with Manchego. Slices of Membrillo paired with Manchego cheese is one of memorables Tapas from Spain. Quince paste and quince candy is called Cotognata in Italian and Kotonjata (Christmas Candy) in Serbia, Croatia, Russia, and other East European countries.