Step 1:Take a pot and add the onion, garlic, celery ribs, bell pepper, chicken cubes, and boiling water. Simmer this mixture on medium heat for 10 minutes.
Step 2:Then add half a can of black beans to the mixture. Also, add salt and cumin, then cook for 5 minutes.
Step 3:Use an immersion blender to puree the soup, then add the rest of the black beans to the pot.
Step 4:Combine cornstarch and 1 ½ tablespoon of water. Next, add the lemon juice and cornstarch to the soup. Cook until it’s thick enough.