Heat olive oil in a large Dutch oven or stockpot over medium heat. Add the onion, carrot, and celery to the pot and sauté for 5-7 minutes or until softened and beginning to brown. Then, add the garlic, kosher salt, black pepper, thyme, and bay leaf, and cook for an additional 1-2 minutes.
1 tablespoon olive oil, ½ large yellow onion, 1 carrot, 1 stalk celery, 4 cloves garlic, ½ teaspoon kosher salt, ½ teaspoon black pepper, ¼ teaspoon dried thyme, 1 bay leaf
Pour in the vegetable broth and milk. Then, add in the corn and diced potatoes, stirring to combine. Bring the soup to a simmer, then reduce the heat to low. Cover the pot with a lid and simmer for 10-15 minutes or until the potatoes are fork tender. Remove the bay leaf.
2 cups vegetable broth, 2 cups 1% milk, 3 cups sweet corn, 2 russet potatoes