First, put in the sift flour (225g, strong 25g), baking powder (1Ts=8g), sugar (50g), and salt (1/2ts=2g), cut cold butter (90g), and turn the food processor short like this.

When butter and flour are mixed evenly, mix eggs (1) and milk (90g) together to dissolve the lump, put it in a food processor, and turn it like this.

When the dough is lumped together, take it out of the food processor.

When the dough is lumped together, place it in a zip lock or plastic bag and rest in the refrigerator for 2-3 hours

Push, fold up, fold down, and then fold the dough 90 degrees, push it back, fold it up, fold it down.. You can repeat it like this. Put the dough in the back of the zip lock again and refrigerate it for about an hour

And prepare frozen blueberries or raw blueberries.

Add blueberries, fold the dough in half, and stick the ends together to prevent the dough from bursting

Then cut the square dough into 2 pieces in a triangle, and then make a triangle into 4 pieces and make a total of 8 pieces

Then, you can mix the egg water for the base and 1 egg yolk + 1 Ts of milk on the top.

Bake in a preheated 190 degree oven for 20 minutes looking at the color