Easy Cauliflower Soup

Bahan-bahan (4 porsi)

• 1 tablespoon butter
• 2 ribs celery (diced)
• 1 small onion (diced)
• 2 cloves garlic (minced)
• 3 cups vegetable broth
• 1 large baking potato (peeled and diced, or 2 small potatoes)
• 4 cups cauliflower florets
• 4 ounces cream cheese (softened)
• 1 cup shredded sharp cheddar cheese (divided)
• salt and pepper to taste