Gruyère Puff

🥘 Ingredients

• egg 3 units, large
• whole milk ½ cup
• all-purpose flour ½ cup
• kosher salt ½ teaspoon
• pepper
• Gruyère cheese ¾ cup, grated
• unsalted butter 3 tablespoons
• coarse sea salt 1 pinch

1. 1

   Heat oven to 400 ºF.
2. 2

   Whisk together egg , whole milk , all-purpose flour , kosher salt and pepper in a bowl until smooth.
3. 3

   Stir in Gruyère cheese .
4. 4

   In 9-inch ovenproof skillet , melt unsalted butter . Swirl to coat all sides.
5. 5

   Pour in batter. Transfer to oven. Bake until puffed and dark golden, 30 minutes .
6. 6

   Sprinkle with coarse sea salt , serve hot.