Cheesy Kielbasa Potato Soup

I stumbled upon the creation of this soup by chance.  The conception was my dad's, but with Dad under the weather it was up to me to pull it off.  We weren't sure what to expect, but it was a pleasant winter-perfect surprise.

4-5 potatoes, pealed and diced
1 16oz. Kielbasa, sliced
1 onion, diced
2 Tbsp. butter
½ gallon whole milk
1 lb. Velveeta cheese, cubed
salt and pepper to taste

1. Place diced potatoes in a pot, cover with water and boil until tender.  Drain when finished.

2. In the pot melt butter and caramelize onion and kielbasa until onion is soft, stirring often.

3. Return potatoes to pot, slowly add milk, then salt and pepper to taste.  Cook on low, stirring often so soup does not stick to the bottom of pot.

4. When soup is heated thoroughly, stir in Velveeta.  Heat through and serve.