Spiced Carrot and Red Lentil Soup

Name: Spiced Carrot and Red Lentil Soup
Prep time: 10 min
Cook time: 35 min
Total time: 45 min
Cuisine: Mediterranean
Ingredients: 1 medium onion (white or yellow); 2 pounds carrots; 3 cloves garlic; 3/4 cup red lentils; 2 tablespoons ghee (or butter); 1 tablespoon extra virgin olive oil; 1½ teaspoon ground cumin; 1½ teaspoon ground coriander seed; ½ teaspoon ground turmeric; 4 cups vegetable or chicken broth (plus extra to adjust soup texture); ½ teaspoon kosher salt (plus more to taste); 1½ cups carrot juice (divided (optional)); ½ cup Greek yogurt; Optional garnishes (chopped parsley, red pepper flakes, feta cheese, yogurt thinned with milk, harissa seasoning, homemade croutons)