Place the flour, sugar, yeast packets, and salt in a bowl, making sure the salt doesn't touch the yeast.

Crush the cardamom seeds in a mortar, add the orange zest, crush well with the mortar, and add to the mixture. Mix everything with a wooden spoon, then add the milk and egg, stirring until you get a consistent and manageable dough.

Once manageable, work it on the table into a ball, flatten it slightly with your hand, add the butter, and work it again into a ball. Let it rest for 1 hour covered with a cloth.

After the time has passed, roll it out to a thickness of 1 cm (about 0.4 inches). Use a round cutter and a bottle cap to cut out the donuts, and let them rest on a tray for another hour.

In a deep pan, heat plenty of oil and fry each side until golden brown.

For the glaze, place two tablespoons of butter in a bowl and microwave on defrost for 2 minutes until melted.

Add 2 tablespoons of powdered sugar and 3 tablespoons of water, stirring well until it has a consistency. Keep adding powdered sugar until you have enough to coat the donuts.