Basic Sous Vide Flank Steak Frites with Red Wine Shallot Sauce

Ingredients

• 8 oz/225 g flank steak
• 1/4 teaspoon salt
• 1/4 teaspoon pepper
• 1/4 teaspoon garlic powder
• 1 Russet potato ~360g/12oz
• 4 Tablespoons olive oil, divided
• 2 Tablespoons Parmesan cheese
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 2 Tablespoons butter, divided
• 1/2 c/80g shallot, minced
• 1 Tablespoon sugar/coconut palm sugar/monk fruit extract/xylitol/erythritol
• 1 clove garlic, crushed with the side of a knife
• 1 c/235ml red wine
• 1 c/235ml chicken or beef broth
• Pinch salt
• 2 Tablespoons chopped parsley