Sous Vide Rack of Lamb with Herby Feta Sauce - A Duck's Oven

Ingredients

• 1 rack of lamb (1.3-2 pounds)
• 1 1/2 tsp kosher salt
• 1 tbsp Italian Seasoning
• 1/2 tsp sumac
• 1 tsp garlic powder
• ¼ cup feta cheese
• 1/2 cup plain Greek yogurt
• 1 tbsp finely chopped mint
• 1 tbsp finely chopped parsley
• Juice from 1/2 lemon
• 1/2 tsp kosher salt