Patat Met Parmezaanse Fritessaus (Dutch Fries with Parmesan Mustard Sa – Revolution Barbecue

Ingredients

• 2 pounds Yukon Gold potatoes
• 2 quarts sunflower oil or peanut oil (for frying)
• 1 tablespoon Revolution Barbecue SPG$ Rub
• 1 large egg yolk (room temperature)
• 2 teaspoons Dijon mustard
• 1 tablespoon wholegrain mustard (with seeds)
• 1 tablespoon white wine vinegar
• 1 teaspoon lemon juice
• ½ teaspoon sugar
• ½ teaspoon fine sea salt
• ½ teaspoon freshly ground black pepper
• ½ cup sunflower oil (or neutral oil)
• 2 tablespoons buttermilk or plain yogurt
• 1 cup freshly grated Parmesan cheese (use a microplane for a fluffy texture)