Dijon mustard is a classic French condiment. This easy Dijon mustard substitute recipe is the perfect way to recreate the classic flavours at home when you've run out.
Grab a spice grinder or mortar and pestle and grind the mustard seeds with the salt until fine. The finer the mustard powder, the smoother the prepared mustard.
Mix the mustard seed powder with the white wine vinegar and 2 teaspoons of water. Mix and add the rest of the water one teaspoon at a time. If the mixture is still too thick, you can add another teaspoon of water.
Let the mixture sit for at least 5 minutes before using.
Notes
Brown mustard seeds are the traditional choice, but yellow mustard seeds work well too. You can also mix yellow and black mustard seeds as I like to do.
If you don't have a pestle and mortar or spice grinder, you can use dry mustard powder instead of mustard seeds, but the result may be closer to yellow mustard than Dijon mustard if your mustard powder contains turmeric. You will also need to add more water.
Refrigerate leftover Dijon mustard substitute in an airtight container for up to 1 week.