Asparagus Soup

i made asparagus soup. this is my recipe. 2 lbs asparagus 4 leeks cut lengthwise and chopped. Remember to rinse the leeks well at least 4 times to remove the sand 1 onion chopped and quartered 3 cloves garlic quartered 32 oz chicken broth ½ stick butter Salt and pepper ½ pint light cream Melt the butter. Sauté the vegetables for ½ hour. Turn up the flame to low/medium, add the chicken broth and cook for an additional ½ hour. Then turn off flame and insert an immersion blender and blend until pureed. Turn on the flame to low and add in the light cream. Cook for about 10 min or until the soup is thickened. Add parmesan cheese.