Potato Corn Chowder with Bacon Recipe

Name: Potato Corn Chowder with Bacon Recipe
Ingredients: 1 tbsp all-purpose flour; 1 tbsp butter; 1/2 yellow onion (diced); 1 leek (rinsed well and diced); 1 clove garlic (minced); 1 cup whole milk (or half and half); 4 cup chicken broth (or (1) 32oz box of chicken broth); 3 russet potatoes (rinsed, peeled (optional) and cubed into 1/4-1/2 chunks); 2 cup fresh corn (or frozen); 1 tsp kosher salt (+ a pinch for sweating); 1/2 teaspoon freshly ground black pepper; 1/4 tsp cayenne pepper (or less, depending on personal taste); 3 slices thick-cut bacon (cooked until crisp and diced); 1/2 cup medium-sharp cheddar cheese (grated); 1 tsp parsley (minced, (optional))