The BEST Authentic Lebanese Lentil Soup Recipe!

You will need: 2 cups red lentils 1 medium-large yellow onion 1 clove garlic 1 tbsp grated fresh ginger 1 tsp salt 1 tsp cumin 2 tbsp olive oil 1/4 tsp turmeric powder (optional for color) 1/4 tsp sumac (optional for garnishing) 1 slice of lemon (optional for garnishing)