This recipe has some unusual features: plenty of flour in the custard mix (presumably to inhibit curdling in the high heat) and a cooked syrup. I have yet to try it, so maybe hold off until I give it a go. Should be fun!
About 1 1/2 pounds puff pastry dough (home made is what you want)
2 cups whole milk
the peel from one lemon
1 cinnamon stick
1/2 teaspoons vanilla extract
2 ounces (half cup minus 1 tablespoon and 1 teaspoon) flour
12 ounces (1 and 2/3 cups) sugar
2/3 cup water
7 egg yolks
Preheat your oven to 550 degrees Fahrenheit. Roll the puff pastry dough into a rectangle, about 18″ x 21″ then roll it up into an 18″-long tube. Cut it in half, wrap each half in plastic and place the pastry in the refrigerator for at least two hours.
Combine the flour and a few ounces of the milk in a small bowl and stir until it’s dissolved. Bring the remaining milk to a boil and add the cinnamon, lemon peel and vanilla. Add the flour mixture, whisk it all together and take the pan off the heat.
Next, combine the sugar and water in another saucepan and bring to the boil. Cook it to 220 degrees Fahrenheit. Add this syrup to the milk mixture and allow it to COOL COMPLETELY. Strain the mixture through a sieve to remove the solids. Lastly, whisk in the yolks.
Remove one pastry log from the fridge and roll it on a lightly floured surface until it’s a little more than an inch diameter. Cut the dough into 1 1/2 inch pieces. Place a piece cut-side down into muffin molds. Let the pieces sit until they warm up a bit and become pliable.
Prepare a small cup of water. Dip your index finger into the water, then plunge it directly into the middle of the center of the dough piece. Flatten the dough against the bottom of the cup to a thickness of about 1/8 inch, then, rotating the form, push the dough against the sides, creating an even crust. Fill each cup about 3/4 of the way with the custard mixture. Bake until the tarts sport brown spots in the surface, about 8 to 9 minutes.
Cool on a wire rack. Repeat the process with the remaining dough and custard mix. Serve the pastéis dusted with powdered sugar and cinnamon.