Crack Pie
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Ingredients
  • **For the oat cookie**
  • 115g unsalted butter, at room temperature, plus extra for greasing
  • 75g light brown sugar
  • 40g granulated sugar
  • 1 egg yolk
  • 80g bread flour
  • 120g porridge oats
  • ⅛ tsp baking-powder
  • pinch of bicarbonate of soda
  • **For the crack pie filling**
  • 300g granulated sugar
  • 180g light-brown sugar
  • 20g milk powder
  • 225g butter, melted
  • 180ml whipping or double cream
  • ½ tsp vanilla extract
  • 8 egg yolks
  • **For the pie shells**
  • 15g light-brown sugar
  • 55g butter, melted, or as needed
  • icing sugar, for dusting
Instructions
  1. Start with the oat cookie. You can do this step a few days in advance too.
  2. Line a large baking tray with greaseproof paper and pre-heat an oven to 180°C(170°C fan assisted).
  3. In the bowl of an electric mixer, cream together the butter and sugars for at least two to three minutes. It'll be pale, fluffy and yellow.
  4. Add the yolk and beat for a further two minutes.
  5. Gently stir in the flour, oats, baking powder and bicarb.
  6. Spread out over the prepared baking tray until it's 5mm thick and place in the pre-heated oven. Bake for 15 minutes unti; it's caramellised and set. The edges will be brown.
  7. Allow to cool, then wrap in cling film until you need it. Store in the fridge and you could do this up to a week in advance.
  8. Pre-heat the oven to 180°C(170°C fan assisted) and place a baking sheet in the oven.
  9. For the filling, combine the dry ingredients with 1.5 teaspoons of salt in an electric mixer. Add the butter and beat on a low speed for two to three minutes. The mixer shouldn't go above 'low' at any point during this.
  10. Add the cream and vanilla and mix for a further two to three minutes. Scrape the sides then stir in the egg yolks. Mix until glossy.
  11. Make the pie shells. Pulse the oat cookies in a food processor with the brown sugar and a little salt. (or bash in a bag then add the sugar after) until it resembles coarse sand.
  12. Knead the crumbs with melted butter until it comes together in a ball. If you need to add more butter to make this happen, do.
  13. Divide the cookie mixture between two 25cm pie dishes. Making sure the mix is evenly spread across the base with a good side.
  14. Place both shells on the prepared baking tray and pour in the filling until it's ¾s full.
  15. Bake for 15 minutes until golden brown but still jiggly in the middle. It may swell up.
  16. Open the draw and drop the temperature by 10°C. Close the oven door again and bake for a further five minutes. It'll be a little jiggly in the middle.
  17. Transfer to a wire rack to cool to room temperature. It'll set. You can freeze a pie at this stage, wrapped in cling film.
  18. Dust with icing sugar and serve.
Recipe by The Bearded Bakery at http://www.thebeardedbakery.com/baking/pastry/pies/crack-pie/