Mix flour and chicken bouillon powder on a plate, and coat beef shanks, then brown them on a tbsp or two of peanut oil
Mean while, peel and slice onion, carrots, potatoes, tomatoes, celery, and coriander leaves
Once beef shanks are browned, place them in a slow cooker
Using the same pan and leftover grease, saute sliced onion and bay leaves, then add them into slow cooker as well, along with sliced veggies
Season, add in paste and broth, mix a little, then set to cook on high for 4-6 H