Community Harvest Whetstone - Leek quiche

Ingredients

• 90g soft butter/Trex or a mixture of the two (according to your taste)
• 180g plain flour
• pinch salt (if using unsalted butter)
• 1 tsp sugar
• 2 egg yolks (keep the whites for later use)
• 2 tbsp water
• 4 small leeks, trimmed, washed and chopped
• 1 tbsp olive oil
• soft cheese (I used a homemade lactic cheese, but ricotta or similar would be fine)
• 2 eggs
• the egg whites leftover from the pastry
• 150ml milk
• salt
• pepper