Croque Madame végétarienne

Ingredients

• 1 package IBIS protein rolls soy, flaxseed, sesame seeds
• 1 bunch of chives
• 2 tablespoons butter
• 1 tablespoon flour
• 120 ml milk
• 1 tbsp tarragon mustard
• salt
• pepper
• 80 g medium Gouda
• 2 small avocado
• 1 tbsp lemon juice
• 1 tbsp sunflower oil
• 4 eggs (size S)
• 4 fried egg molds
• Chive rolls for garnish