Pour flour onto the worktop and make a well in the centre for the eggs and olive oil.
Add the eggs and olive oil. Mix with a fork and then start kneading for 5 minutes until you have a smooth dough.
Mix all Dauphiné filling ingredients well in a bowl and place mix in a piping bag.
Bring water to a boil, add butter to emulsify. Blend melted butter, water, cheese, and black pepper until smooth for cheese sauce.
