Indian-Spiced Red Lentil Soup

Ingredients

• 1 tablespoon coriander seeds
• 1 tablespoon cumin seeds
• 8 cloves garlic, peeled
• 1 teaspoon salt
• 3 tablespoons coconut oil
• 2 large onions, diced
• 5 stalks celery, chopped
• 3 carrots, diced
• 2 tablespoons ground turmeric
• 1/4 teaspoon crushed red pepper flakes
• 2 bay leaves
• 3 1/2 cups red lentils, rinsed
• 2 quarts water, or more as needed
• salt
• freshly ground pepper
• lemon wedges, for serving