They are called this because they recall those crystal and plaster formations, small natural sculptures of the desert. I had one at home as a child. Desert roses have always fascinated me, like that plant that survives dry and then with a drop of water is reborn almost suddenly. Creatures that make themselves beautiful in aridity.
Mix all the dry ingredients, mix in the liquids and create a malleable dough. Lastly add the coarsely chopped corn flakes. Shape into balls, arrange a handful of corn flakes on a flat plate and crush the balls with the palm of your hand on the corn flakes, so that they stick to the surface. Place them gradually on a tray covered with baking paper and put them in the refrigerator for about half an hour. Meanwhile, heat the oven to 180 ° C. Transfer the biscuits to a baking sheet covered with paper and bake them for about 15 '. Let it cool down. Meanwhile, blend 2 tablespoons of brown sugar that you will use to sprinkle them before serving.
For this recipe I used flour 1. To vary the recipe you can try mixing 1/3 flour 1, 1/3 wholemeal or spelled flour and 1/3 gluten-free flour (eg buckwheat or rice, for a lighter effect).