A homemade teriyaki sauce featuring soy sauce, mirin, sake, and sugar, cooked until thick enough to coat the back of a spoon. This is perfect for a delicious teriyaki burger.
1: Combine soy sauce, mirin, sake, and sugar in a saucepan.
2: Cook on medium heat, bringing to a boil.
3: Cook until the sauce thickens enough to coat the back of a spoon, about 11 minutes.
