Make this recipe a recipe that people in that category can eat. categories: ['low_calorie'], recipe: in a large saucepan cook the onion, celery, and carrot in butter over medium-low heat, stirring, until the vegetables are tender. stir in the broth and rosemary, and bring to boiling. whisk in the potatoes, a little at a time, bring the soup to a boil again, stirring, and add the vinegar, parsley, and season with salt and pepper to taste.

Target recipe: peel and slice potatoes. chop onions and celery. saute these ingredients in 1 1/2 tablespooons of butter. add boiling water, enough to cover. add salt and bay leaf. boil the veggies until the potatoes are tender. remove bay leaf. put them through a ricer or blender. beat into the potato mixture 2 tablespoons butter. thin the soup with your choice of milk, cream or chicken stock. add salt and pepper to taste. add worcestershire sauce. stir and bring to near boil. serve garnished with parsley and chives.