Cut the kernels from the cobs and set kernels aside for making chowder.* Place the bare cobs in a stockpot.
Add 4 cups broth, 1 ½ cups milk, and 1 cup cream to pot. Bring to a boil then reduce heat and simmer un-covered 20 minutes while making the chowder. Use tongs to remove and discard cobs before using corn stock in step 3.
Place a 5 Qt dutch oven over medium/high heat. Add chopped bacon and cook stirring occasionally until browned. Remove bacon bits with a slotted spoon and set aside.
In the same pot, add chopped onion, celery and carrot to the bacon fat and cook uncovered, stirring occasionally, until onion is soft (7-8 min).
Add sliced potatoes, 4 cups corn kernels, 2 tsp salt, ¼ tsp black pepper, and ¼ tsp cayenne pepper. Pour corn stock into the pot, bring to a light boil then simmer uncovered 10-15 minutes or until potatoes are tender. Season with salt and pepper to taste**. Ladle into bowls and garnish with reserved bacon and chopped chives.
