Horseradish Beer Mustard

Ingredients:
- 1/2 cup dry mustard, such as Colman's
- 13 cup sweetish dark beer, such as Brooklyn Local 2 or Negra Modelo
- 1/2 cup drained prepared horseradish
- 1 tablespoon brown mustard seeds
- Salt and pepper, to taste

Directions:
- In a bowl, whisk together the dry mustard, the beer, the horseradish and the brown mustard seeds.
- Season with salt and pepper to taste.
- Cover and refrigerate overnight to let the flavors calm down a little.
- The next day, taste again for salt and pepper, and whisk in a little more beer if the mustard seems too thick.
- Store in a sealed container in the refrigerator.