Prepare Ingredients: Peel and cube potatoes, dice onion, and mince garlic. Cut kernels from fresh corn if using.

Layer Ingredients: In the slow cooker, combine potatoes, corn, onion, and garlic. Add broth and seasonings: salt, pepper, smoked paprika, and thyme.

Cook: Cover and cook on Low for 6-7 hours or High for 3-4 hours until potatoes are tender.

Thicken Chowder: Melt butter in a saucepan, whisk in flour for 2 minutes, then gradually add milk and cream until thickened.

Combine to Finish: Pour thickened mixture into the slow cooker. Stir well and let sit for 10-15 minutes.

Add Cheese (Optional): Stir in cheddar cheese until melted and adjust seasoning if needed.

Serve: Ladle chowder into bowls and garnish as desired.