Stir in the minced garlic and cook for another minute until fragrant.
Pour in the white wine and chicken broth, then bring the mixture to a simmer.
Add the cleaned mussels to the pot, cover with a lid, and cook for 5-7 minutes, or until the mussels have opened. Discard any mussels that remain closed.
Stir in the chopped parsley and red pepper flakes, if using. Season with salt and pepper to taste.
Serve the mussels in bowls with the broth, garnished with lemon wedges.
Notes
For a creamier sauce, add 1/2 cup of heavy cream just before serving.
Try serving the mussels with crusty bread for dipping in the broth.