Sous Vide Salmon

Ingredients

• 2 (6-ounce) skin-on salmon filets, skin removed and reserved
• Kosher salt and freshly ground black pepper
• 1 tablespoon unsalted butter
• 4 tablespoons full-fat Greek yogurt
• 1 tablespoon tahini
• Juice of 1 lemon
• 2 tablespoons extra virgin olive oil
• 1 tomato, chopped
• 1/2 cup chopped fresh cilantro
• 1/2 avocado, diced
• 1/2 red onion, chopped
• Juice of 1 lime
• 4 ounces green beans, steamed, for serving