How to make your own mustard. This is tarragon honey mustard but if you don't like tarragon and honey you can leave them out and just have mustard.
Ingredients
¼ cup yellow mustard seeds
¼ cup brown mustard seeds
½ cup dry white wine
½ cup apple cider vinegar
½ tsp sea salt
2 tbs honey
2 tbs chopped fresh tarragon
Instructions
Combine mustard seeds, wine, vinegar and salt in a small non-reactive bowl and cover with plastic wrap. Allow to sit at room temperature for 48 hours.
Add honey and tarragon.
Strain, but reserve liquid.
Put seeds into a blender (I used a nutri-bullet) and add enough of the liquid to make a spreadable consistency. Give it a whizz but not for too long as this is a grainy mustard and you don't want it to end up smooth. Add more of the liquid as required until mustard is of desired consistency.
Store in an airtight container in the fridge for up to three months.
Recipe by Hotly Spiced at http://hotlyspiced.com/tarragon-honey-mustard/