Cook the sorghum grain using only 2 cups of the water in a pressure cooker (@ High Pressure for 1 hour). While the sorghum is cooking, prepare the other ingredients. Using a medium-sized pot, start sautéing the minced garlic and onions in olive oil. Add the carrots, kale, ham, and tomatoes and continue sautéing for about 10 minutes on medium heat. Add cooked sorghum into the pot and stir gently to combine all ingredients. Then add the remaining 2 cups of water, chicken broth, salt, and black pepper and cook for approximately 10 minutes on medium heat.