Heat 1 tbsp EVO in large saucepan over medium high heat. Stir in onion, cooking 6-8 minutes, or until soft + translucent.
Add whole garlic cloves, sauteing 1 minute.
Add vegetable stock, bring to boil. Reduce heat to medium.
Add broccoli, remaining chickpeas, 1 tsp salt + 1 tsp pepper, cooking until broccoli softens, about 5 minutes.
Remove whole garlic cloves. On a cutting board, press them into a paste using a spatula. Stir garlic paste back into soup.
Remove pan from heat and purée with hand-held blender (or pour into regular blender) until smooth. If soup is too thick, add a touch more stock and blend.
Serve + garnish with roasted chickpeas, mint leaves and black pepper.