01 - In a large pot over medium heat, cook diced onion and minced garlic until softened and fragrant, about 4 minutes.
02 - Add black beans, vegetable broth, ground cumin, chili powder, salt, and black pepper. Stir to combine and bring to a boil. Reduce heat to low and simmer, uncovered, for 20 minutes.
03 - Transfer half of the soup to a blender or use an immersion blender to partially purée until smooth, then return to the pot and combine with remaining soup.
04 - Ladle soup into bowls and garnish with lime wedges and chopped cilantro before serving.