Broccoli Cheese Soup - Seventh-Day Adventist Diet

Ingredients

• 6 cups roughly chopped broccoli florets (fresh, not frozen)
• 7 tbsp butter, divided
• 1 large yellow onion, , diced
• 3 cloves garlic
• 6 tbsp flour
• 14.50 oz can vegetable broth
• 2 cups 2% milk
• 1 tsp ground mustard
• ¼ tsp cayenne pepper
• kosher salt
• fresh cracked pepper
• 4 oz shredded sharp cheddar cheese + more for garnish
• 4 oz shredded Monterey jack cheese + more for garnish
• simple crostini, optional