This is an Omani soup, a lightly spiced blend of sweet veggies. Lots of Middle Eastern soups use oats as a thickener, which gives a nutty undertone and a creamy texture. I fried up some carrot shavings for a fun, crispy garnish. —witchykitchen
In a large pot, heat butter/ghee and saute onion and garlic until the onion is translucent. Add fennel and cook, stirring often, for 10 minutes or so until fennel is softened and beginning to carmelize. Add carom seeds, cumin seeds and coriander seeds and stir for a minute, add turmeric powder and red chili powder and stir for a minute more, being careful not to burn.
Add carrots, oats, and 2 cups of the chicken broth. Stir well, bring to a boil then reduce to a simmer and simmer, covered, until carrots are very soft. Puree in a blender and return to the pot. Add the remaining 2 cups of chicken broth, salt to taste, and heat back through.
For the garnish: shave the carrot with a peeler. Heat a half inch or so of oil in a pan to medium high to shallow fry. Fry the carrot in batches; it will be very bubbly until most of the water is released. Just as the bubbles slow and it starts to turn golden, remove to a paper towel-lined plate and allow to cool. Serve the soup hot, garnished with crispy carrots and chopped fennel fronds.