Step 1In a large saucepan, heat olive oil on medium heat.
Step 2Add in onion and garlic, sauté about 5 minutes.
Step 3Add in Azuca cherry tomatoes on-the-vine with stem in sauté pan with 1 tablespoon of butter. Add salt and pepper to taste. Cook for 4 minutes until tomatoes are soft and broken.
Step 4Next, deglaze pan with a quarter cup of cooking wine or any white wine of your choice. Simmer for an additional 3 minutes then add the pack of frozen mussels and remaining butter. Cover with lid and steam about 3 minutes until mussels are open.
Step 5Plate and garnish with chopped parsley. Serve immediately. Enjoy!
If the mussel doesn't open throw it away.