Donair Sauce Recipe #1 This makes a nice thick donair sauce - very much like what you'd get in Halifax. Ingredients: a can of evaporated milk, cold a can of sweetened condensed milk, cold 1 teaspoon of onion powder 2-3 tablespoons of garlic powder 3-5 tablespoons of white vinegar To make: Mix the cans of milk, the onion powder and the garlic powder in a bowl. Add vinegar a tablespoon at a time while stirring, until the mixture thickens. Refrigerate until ready to use.