The dumplings can be made from dough spread in a thin layer on a wooden cutting board, then cut and scraped off in small pieces which are dropped into boiling water. They can also be made with a special perforated halušky strainer forming small (1/2 X 2–3 cm) irregularly-shaped lumps which drop directly into boiling water as a thinner batter-like dough is pressed through the openings of the strainer.
Although recipes vary from region to region, in general flour is mixed with water to form a batter. Finely grated potatoes can be added to the batter. Eggs may be added, but Slovak bryndzové halušky do not contain them. Flour and mashed potatoes are enough to form a batter. After cooking, they are mixed with various ingredients, such as cheese, meat, butter, cabbage, onions, or combinations of these.
In the United States, most adapted halusky recipes call for egg noodles rather than potato dumplings. Some American cooks include loose, cut, and fried green cabbage (a convergence with strapačky, compelled by simplicity, difficulty in finding bryndza or acceptable substitutes, and access to affordable cabbage in areas with prominent existing Slavic and Germanic immigration).