Mushroom Tarragon Braised Tempeh

Ingredients

• 2 sm. shallots, minced (1/2 cup minced)
• 4 cups sliced mushrooms
• 1/2 cup Madeira wine (or another fortified wine)
• 2 cups Mushroom Stock (or other dark stock)
• 3 tbsp Dijon mustard
• 1 tbsp horseradish, or to taste
• 2 tsp cornstarch*
• 1/4 cup cold water
• 1 tbsp fresh tarragon, finely chopped
• sea salt, to taste
• freshly ground black pepper, to taste