Combine stock, mushrooms, wild rice, leek, and garlic in Dutch oven. Bring to a boil; reduce heat to medium-low. Cover and simmer for 45 to 50 minutes until rice is tender. Stir in bell peppers, carrot, and salt. Cover and simmer for 8 more minutes.
STEP 2
In a small bowl, combine almond flour and chickpea flour with ¼ cup water. Stir into the soup. Cook, stirring constantly, for 1 to 2 minutes until thick and bubbly. Adjust consistency with more water if needed. Stir in thyme and vinegar.