First, peel and cube the potatoes, dice the onion, and cook and chop the bacon. If you use canned corn, drain it well; if fresh, cut the kernels off the cob.
Layer the corn, potatoes, onion, garlic powder, salt, pepper, and chicken broth into the crock pot. Stir gently so everything’s evenly distributed and submerged.
About an hour before serving (or after the base cooks), whisk together the heavy cream and cornstarch, then pour this mixture into the chowder. Turn the cooker to high if it was on low.
Let it cook about an hour more until potatoes are tender and liquid thickens. Stir in the crisp bacon bits, and add garnishes like green onions or extra bacon. Serve hot.