Roux

Ingredients

• 160 g water
• 80 g unsalted butter
• 1/2 teaspoon fine sea salt
• 1 teaspoon sugar
• 95 g bread flour
• 3 large (150 g) eggs
• 2 Tablespoons chopped fresh chives
• 1 teaspoon dried mustard powder
• 1/4 tsp freshly ground black pepper
• 100 g shredded sharp cheddar cheese