Fruit Tart with Custard
[Vegan]

For the Custard: 

1. In a saucepan, whisk together the milk, cornstarch, sugar, turmeric until well combined
2. Add the lemon zest, or thin lemon peel, making sure you only use the yellow part of the lemon, and not the white flesh under the skin. That part is bitter.
3. Set the sauce pan on high heat and bring to a simmer while whisking continuously.
4. Keep stirring fast and vigorously to avoid any lumps. Stop when you reach your desired consistency. If you like a smooth custard you should pass it through a sieve half way through this step to filter out the lemon zest.
5. Let cool the custard at room temperature. Whisk occasionally to prevent the formation of skin on the surface. If you want to cool it down faster, you can submerge the pan in cold water while whisking until the custard is cold.

For the Shortbread:

1. In a bowl, add lemon zest, vanilla extract, sunflower oil, coconut oil, water, salt, sugar, and stir well.
2. Add the wholegrain flour and the baking powder all at once and mix with a spoon. Then, mix with hands.
3. Shape the dough into a ball.
4. Wrap in foil and let rest in the fridge for an hour, or in the freezer for 15 minutes. This is a very important step as the dough needs to cool down or else it will be very hard to roll.
5. Prep the pie dish by greasing it with some oil. We use a 10 inch pie dish. 9 inch is easier if it's your first pie.
6. Then dust it with some flour. This will make it easier to remove the tart once baked.
7. Start flattening the dough, first with your hands, then with the help of a rolling pin. Make it 1/8 of an inch thick (4mm). Also, make sure you sprinkle your rolling pin and your work table with some flour. You need to work fast here as you want to keep the dough as cold as possible so that it's easier to move.
8. Roll the dough around the rolling pin and carefully un-roll it over the pie dish.
9. Make sure the dough covers the whole dish and fits in it tightly.
10. With a fork, make some holes into the base of the tart.
11. Pour your homemade custard into the dish and spread it around evenly with a spoon.
12. Bake at 360˚F for about 30 min. The tart is ready when slightly golden on top.
13. Let the tart cool down completely before adding the fruit on top.