Combine turmeric powder, dry chili powder, salt and sugar to coat beef slices.
To make Sambal Chili Merah, pre-heat skillet with cooking oil over high heat and add the chili boh, red chili and bird’s eye chili, garlic, lemongrass, ginger and prawn paste. Saute for 8-10 minutes and add salt, sugar and tamarind juice.
Transfer it to a food processor and blend the chili spice into a coarse Set aside.
Pre-heat the skillet with cooking oil over high heat and add the beef slices and stir fry it for 3-4 minutes ensuring all sides are sealed and set aside. Lastly, quick stir fry the the sambal chili merah, eggplant, shallot and scallion together and toss in the beef .