- 2 tablespoons olive oil
- 1/2 white onion, diced
- 2 cloves garlic, chopped
- 1 bunch collard greens, stems removed and leaves torn into bite-size pieces
- 1/2 teaspoon red pepper flakes
- 2 cups vegetable broth
- 2 tablespoons apple cider vinegar
- 1 teaspoon brown sugar
- 1/4 teaspoon liquid smoke flavoring
- 1/4 teaspoon smoked paprika
- Heat olive oil in a large skillet over medium heat; cook and stir onion and garlic until browned and fragrant, 3 to 4 minutes. Add collard greens and red pepper flakes; cook and stir until greens are slightly wilted, 2 to 3 minutes.
- Combine vegetable broth, cider vinegar, brown sugar, liquid smoke flavoring, and paprika in a large pot; add collard greens mixture. Cover pot and simmer until greens are very tender, 40 to 50 minutes. Strain collard greens before serving.