Wash the vegetables and peel them. Freeze the processed cheese. Prepare a blender to puree the soup.
Cut the peeled potatoes and pumpkin into cubes. Place in a saucepan, cover with water, add bay leaf. Let cook for 25-30 minutes until the pieces are soft.
Finely chop the onion, grate the carrots, crush the garlic with a knife. Melt the butter in a frying pan and fry the onions, carrots and garlic until golden brown. Grate the frozen processed cheese.
Place cheese, roast, pepper and salt in a saucepan with pumpkin and potatoes. Remove the bay leaf from the soup. Cook until the cheese is melted. Puree the finished soup with a blender until pureed.
Make homemade croutons by toasting bread cubes in the oven. Serve pureed pumpkin soup with croutons and sour cream.