Mushroom Gravy

Ingredients

• 10 medium-large mushrooms, wiped clean and minced (3⁄4 pound)
• 1 medium onion, finely minced (about 1 cup)
• 1 tsp minced or crushed garlic
• 2 Tbsp olive oil
• 1/4 heaping tsp dried sage
• 1/4 heaping tsp dried thyme
• 1 tsp salt to taste
• 2 Tbsp cornstarch or arrowroot
• 1 quart vegetable broth
• black pepper, to taste
• soy sauce, to taste