Ingredients:

• 1/2 cup plus 3 tablespoons yellow or brown mustard seeds
• About 1/4 cup plus 2 tablespoons (1 1/4 ounces) mustard powder
• 1/2 cup Rocky Mountain Olive Oil Gravenstein Apple White Balsamic Vinegar
• 1/2 cup flat hard apple cider
• 1 1/2 teaspoons kosher salt
• 1 Granny Smith or Gravenstein or similar tart apple, peeled, cored and finely grated

Directions:

Soak the mustard seeds: Place the mustard seeds and powder in a medium glass or ceramic bowl along with the Gravenstein Apple Balsamic Vinegar and hard cider overnight. Place the mixture in a food processor along with the salt and process for 1 to 2 minutes until the seeds are coarsely ground. Add the grated apple and pulse a few times to incorporate. This makes about 1 2/3 cups mustard.

The mustard will be very pungent at first. Cover and refrigerate for a few days (or to taste) before using.