One of my favourite French desserts, which you find in most French Patisserie shops and supermarkets, is a 'flan'. It's like our custard tart but with flour added to the custard mixture, which makes it more solid, just like a set custard. I've never made one, but browsing on the web I found a few recipes.
Apparently, French pastry chefs use a 'Flan' powder.
Some recipes used sweet shortcrust pastry, others puff pastry, but the method was usually the same. Some added seeds from a vanilla pod, others vanilla extract.
I decided to make some sweet shortcrust pastry  - these ingredients make 250g of pastry.

125g plain flour
80g cold butter cut into cubes
25ml milk
pinch salt
10g caster sugar
1 small egg yolk
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