Beef gravy/sauce

Name: Beef gravy/sauce
Prep time: 15 min
Cook time: 10 min
Total time: 25 min
Cuisine: American
Ingredients: 2 heaped tablespoons of corn flour; Bovril cubes x 6; Oxox cubes x 4; Level teaspoon of mixed herbs; Level teaspoon of mixed spice; Half teaspoon spoon of garlic powder.; Tablespoon of onion powder.; 4 tablespoons of soyasauce; 1 tablespoon of lemon juice; 50 also of water.; Add vegatable water until desired thickness.