How to make mustard at home   Ingredients 2 cups ground mustard 4 tablespoons turmeric 4 tablespoons ginger 1 tablespoon onion powder 1 teaspoon white pepper 1 teaspoon salt Quarter of a teaspoon of sugar 1 cup white vinegar 1 cup water   Method: Put mustard in a blender, add ginger, onion powder, turmeric, vinegar and water, and mix well. Add salt, sugar,