Gougère with mascarpone and red caviar

Ingredients

• Water – 125 g
• Milk – 125 g
• Wheat flour – 160 g
• Salt, pinch
• Sugar, pinch
• Butter, – 100 g
• Egg – 5 pcs
• Pepper, nutmeg, to taste
• Gruyere cheese, grated – 150 g
• Gruyere cheese, grated, for sprinkling – 30 g
• Vegetable oil for the oven-tray
• Mascarpone – 350 g
• Red caviar – 140 g
• Freshly ground pepper, to taste
• Greenery, parsley, dill, to taste