Remove stalks and stems from collard greens (these can be saved and frozen for later uses, such as making broth). Wash and thoroughly dry the leaves.
In a large pot over medium heat, cook the olive oil and then add bacon, bay leaf, garlic and onion. Cook about 10 minutes, or until onions soften.
Rip the greens into big pieces and add them to the pot, pressing them down with a spatula.
Add broth, vinegar, sugar and red pepper flakes. Boil, and as the greens wilt, turn them in the pot. Reduce heat and cook, simmering and covered, for 1 hour. Remove bay leaf and season greens with salt and pepper to taste. Serve with cornbread and Wolff’s Apple BBQ pulled pork.