This is my mom's recipe. It's a quick and easy "pantry" recipe (things I already have on hand). I love it in a bread bowl with a little bit of crumbled bacon on top.
Stir together in large pot:
5-6 potatoes, peeled and cut into 1" cubes (I prefer Yukon Golds, but Russets work too)
5 chicken bullion cubes
1.5 - 2 cups water (this will make a very thick soup. Increase to 4 cups for a more traditional consistency)
1/4 cup dried onions
Boil until potatoes are tender. Stir with a whisk to break cubes up just a bit.
Add 1 cup shredded cheddar cheese.
Add parsley and pepper to taste.