“罗宋”＝ Russian (WW2 前租界上海人的洋滨腔英语 ‘Pidgin English‘, 称呼白俄罗斯人 White russian expats）.
This recipe is similar to the delicious French “Boeuf Bourguignon” (“Red Wine Beef Stew”).
Russian “Shashlik” 烤串鸡(/羊/牛) 肉浓汤
Singapore Russian Cuisine at Shashlik Restaurant (run by Hainanese) :
For Russian food, an ex-colleague recommended to try Beerfest. It’s a microbrewery run by Russians and they are located at Rochester Park and Hainanese chef. They serve good beer, borscht, Shashlik and dumplings. Once every few months they have a “Slavic Day” usually on the weekends when special Russian and East European food is served.