Actually, the title is sort of misleading... the potatoes weren't close to rotting but the celery, onion and carrots were.
Sometimes I buy vegetables because they're "good to have" and serve as a good base for a myriad of dishes. These usually include celery, carrots, onion, and garlic. I bought a whole bunch of stuff over the past several months and promptly forgot about them when I stopped cooking. Looking through my pantry this evening, I found a whole bunch of stuff that was about to go bad, so I threw it together to make a soup and it's pretty good.
Potato Cheese Soup
1 medium onion, diced
2 celery stalks, diced
2 medium-large carrots, peeled and diced
2 T olive oil
2-4 cloves garlic, grated
32 oz vegetable stock
32 oz chicken stock
7-8 medium yukon gold potatoes, peeled and roughly cubed
grated cheddar cheese
Heat olive oil. Sweat onions, carrots, and celery and add a big pinch of salt. Stir occasionally. Add in chicken and veggie stock and bring to a boil. Add in garlic and then the potatoes. Bring it back to a boil and allow the potatoes to cook until tender. Stick blender it and then taste for seasoning. Add salt, if needed (probably so). Stir in parsley and celery leaves. In each bowl, garnish with a large helping a cheddar cheese and homemade croutons.