Start crockpot on high, slice yellow onions and sautee in butter until translucent. Add boillion, water, garlic powder and onions to crockpot and simmer on high until desired flavor is reached and onions are tender and clear.

Pour hot soup into an oven safe small bowl, I use a coffee cup. Top with provolone slice and parmesan cheese. Warm the soup bowl in the oven for just a few seconds to melt the cheese, however simply stirring in the cheese is just as delicious.