Tart pastry - Cream butter, icing sugar and salt until fluffy.
Add egg and vanilla extract and mix well.
Sift flour onto the worktop and make a hole in the center. Add in the butter mixture. Knead to soft dough, cover and set aside for about 30 minutes.
Press a small piece of dough (30g) into each greased tart tin. Trim the edges with a sharp knife. Prick holes with a fork. (please refer this step from my previous post Potato Pie) Bake at preheated oven 180 degrees C for 10 minutes.
Filling - To make osmanthus sugar syrup
Mix boiling water with sugar. Stir well till sugar dissolved and add dried osmanthus into it. Stir well again and cover with cling wrap or a lid until osmanthus sugar syrup cooled down, strain well and set aside.
In a large bowl or cup, stir eggs and soy milk well, then add the osmanthus sugar syrup (110g) into it. Gently stir well again and pass egg liquid mixture through a fine sieve two to three times.
Pour egg liquid mixture into tart shells and bake at preheated oven at 160 degrees for 25-30 minutes or until egg is set.
Recipe by Anncoo Journal at https://www.anncoojournal.com/osmanthus-soy-milk-egg-tarts/