Sous Vide Turkish Lamb Meatballs with Tzatziki Sauce

Ingredients

• 1 pound ground lamb
• 1/4 cup chopped fresh parsley
• 1/4 cup minced onion
• 1/4 cup toasted pine nuts, finely chopped
• 2 cloves garlic, minced
• Kosher salt
• 2 teaspoons ground coriander
• 1/4 teaspoon ground cinnamon
• 1 cup whole milk yogurt
• 1/2 cup diced cucumber (about 1 small)
• 3 tablespoons chopped fresh mint
• 1 teaspoon lemon juice, plus more to taste
• 1/4 teaspoon cayenne pepper
• Pita bread, for serving