Cheese Puffs

Ingredients

• 1/2 tsp. Kosher salt
• 2 large eggs
• 1 tsp. freshly ground white pepper
• 1/2 tsp. granulated sugar
• 1/2 c. freshly grated Gruyère, plus more for topping
• 1/2 c. water
• 1/2 c. all-purpose flour
• 4 tbsp. butter