Sweet and sour sirloin
tenderloin:8
cooking wine:1 / 2 tbsp
soy sauce:1 teaspoon
balsamic vinegar:1 teaspoon
salt:8
flour:about 1 tbsp
water:2 tbsp
sugar:about 2 tbsp
starch water:30ML
https://cp1.douguo.com/upload/caiku/b/c/8/yuan_bc4d87800c7278abb283b1ae0b695f78.jpg