Solar Red Lentil Soup

As soon as we got back from our two day mini vacation, I went to the store for some red lentils.  I vary the recipe every time I make it, but the basic recipe is onion and garlic sauteed in olive oil, ground coriander, cumin, mustard, ginger, lemon peel and red lentils. We like it thick so I use less water than most recipes call for. I served it with sour cream and hot sauce. Red lentils cook quickly and are great for solar cooking. The soup was ready in about an hour.