Name: French Cheese Puffs (Gougeres)
Prep time: 15 min
Cook time: 25 min
Yield: 24
Ingredients: 1 cup (250ml) water; 80g / 5.5 tbsp butter (, unsalted, cut into 1.5 cm / 0.5" cubes); 1 cup (150g) flour (, plain / all purpose); 3/4 tsp salt (, kosher/cooking salt); Pinch nutmeg ((powder or freshly grated)); Pinch black pepper; 4 eggs ((~60 - 65g / 2oz each)); 200g / 2 cups Gruyère cheese (, freshly shredded (Note 1)); 50g / 1/2 cup Gruyere cheese, extra (, freshly shredded (Note 1)); 1 egg yolk (, for brushing)