For the cookie dough: Put the butter and the powder sugar In a bowl and stir with a rubber spatula.

Add vanilla and eggs little by little and mix well. Then, Sift and add the flour and cornstarch.

Once you are fine wrap the cookie dough with plastic wrap and leave it in the fridge for one hour.

For the Bread Dough: Add the one cup milk,1 egg, 2 and ¼ tsp instant yeast and mix.

Add the flour, sugar and salt and mix until the dough forms.

Then transfer it to a slightly floured counter and knead it for 10 minutes. Add the 55g softened butter and knead until smooth and elastic.

Make it round, put it in a bowl and cover it for about one hour or until it doubled in size.

After it doubled in size, punch out the gas and divide it in 12 pieces and form them into small balls. Cover them with a wet cloth and leave them for 15 minutes.

After the 15 minutes divide the cookie dough in 12 pieces.
Then, Roll out the cookie dough (one at a time) between two layers of plastic wrap and flatten it. Place the flatten cookie dough on top of bread dough and enclose it.