This is my first attempt at mustard. It's a little hot, so you may want to add the cayenne and flakes 1/2 tsp at a time. I also poured in a bit of honey after I blended the ingredients in an attempt to take some of the heat off.
1/2 cup yellow mustard seeds
3/4 cup apple cider vinegar
1/3 cup water
1 1/2 tsp. sugar
1 tsp Cayenne Pepper
1 tsp Hot Pepper Flakes
Cover the mustard seeds in the vinegar and water, making sure the seeds are covered by the liquid.
Add the sugar and spices to the seeds mixture.
Let soak for 2 days.
Blend mixture until it reaches desired consistency, adding water if needed.
This made (2) 1/2 pint jars of mustard.
Stay hungry my friend.