In a large bowl mix yeast, half a teaspoon sugar and water, let the mixture rest for 5 to 10 minutes. Add the flour, the eggs, the condensed milk, salt, vanilla and if desired the orange extract or zest to the yeast mixture and stir well, preferably in the stand mixer. Now Beat in the butter bit by bit, until until the dough is soft. Cover with a towel and let it rest in a warm place for about 2 hours or until doubled in size.

Afterwards, divide the dough into 5 equal pieces.
Form 4 out of the 5 pieces into single round loaves, place them on a baking tray trimmed with baking paper and cover again with a towel. Form the „crossed bones and skulls“ from the rest of the dough, adding more flour to prevent the dough from becoming sticky. The „bones“ are formed by kneading long, uneven strips of dough and the „skulls“ are formed simply as a ball of dough. Once the decorations are formed, they are pressed on the dough that was reserved for the breads. The dough is left to rest for about 30 minutes more.

Bake the loaves at 180 degrees for 15 to 20 minutes or until they have a nice brown colour. Take them out of the oven and let them cool for about 10 minutes. For the coating, heat a quarter cup of sugar with 2 tablespoons of water and the juice of half a lemon until a syrup forms. Brush with the lukewarm syrup and sprinkle with sugar. The bread is ready! A cup of hot chocolate is served with it.