Spinach in creamy sauce

Ingredients:

• 900 g spinach (remove tough stems)
• 3 tbsp (45 g) unsalted butter
• 1/4 cup premium wheat flour
• 2.5 cups of milk at room temperature
• Coarse salt
• 1/2 tsp freshly grated nutmeg
• 1 egg category CO, plus 2 egg yolks
• Freshly ground pepper

Preparation:

1. Melt the butter in a skillet over medium heat. Add the flour and stir until smooth. Cook, stirring, until the mixture lightens in color, about 1 minute.
   
   Remove from heat, add milk, 2 teaspoons of salt, and nutmeg. Return to medium heat and bring to a boil, stirring constantly. Remove from heat again and cool slightly, stirring.
2. Heat a deep skillet over medium heat. Add the spinach and 1 teaspoon of salt, cover, and cook for about 3 minutes. Stir with tongs and continue to simmer, uncovered, for about 2 more minutes. Drain and cool slightly, then squeeze the spinach well. Chop coarsely.
3. Gently heat the sauce, then stir in the whole egg and egg yolks. Cook, stirring, until the sauce thickens. Add the spinach and heat through. Season with salt and pepper.