Ingredients

• 3 egg yolks
• ¼ teaspoon of Dijon mustard
• 1 tablespoon of lemon or lime juice
• 1 small squirt of hot sauce
• 120 grams of butter

Instructions

• In the blender bowl, add the egg yolks, Dijon mustard, lemon or lime juice, and hot sauce. 
• Cover, and blend for about 5 seconds.
• Melt the butter in a glass measuring cup with microwave radiation for about 1 minute.
• With the blender whirring on high speed pour the butter into the egg yolk mixture in a thin stream. 
• It will start to thicken. 
• Keep the sauce warm in a pan of hot tap water.