Cook the onion, carrot, and zucchini in the butter with a big pinch of sea salt over medium heat. The sea salt will bring out the veggie's juices and sweeten them. Let this go on medium for about 7-10 minutes stirring occasionally. If you are feeling weak, you can set a chair next to the stove while it cooks so you can stand up to occasionally stir.
Add the garlic and cook for a minute.
Add the bone broth and bring to a boil. Reduce to a simmer for a few minutes, turn off the heat and sea salt to taste.
