Cheddar Cauliflower and Roasted Garlic Soup

Ingredients

• 2 medium heads cauliflower, cut into florets and divided
• 1 head garlic
• 1/2 tbsp plus 1/2 tsp olive oil, divided
• 4 Tbsp butter
• 1 1/2 C diced carrots
• 1 1/2 C medium chopped sweet onion
• 1 C diced celery
• 1 Tbsp dry parsley
• 1 tsp pepper
• 1/3 C all-purpose flour
• 6 C chicken or vegetable broth
• 2 cubes chicken or vegetable bouillon
• 1/2 C heavy cream
• 3 C shredded sharp white cheddar cheese