Vegan Yolk Sauce

Name: Vegan Yolk Sauce
Ingredients: 1/2 cup water; 1/2 cup neutral flavored oil; 2 tsp cornstarch; 1 Tbsp nutritional yeast; 1 Tbsp ketchup; 1 Tbsp yellow mustard; 1 tsp garlic powder; 1/2 tsp turmeric; 1 - 2 tsp MSG; Salt to taste; 1/4 tsp black salt (or to taste)