This dough is the foundation of many excellent dumplings, including Chinese jiǎozi, Korean mandu, and Nepali momo. The process of making the dough is easy to master, especially with a little help from modern tools such as a food processor (though you can mix the dough by hand).
Asian wheat flour wrappers may be made with cold or hot water—the temperature is traditionally dictated by the cooking method. Boiled dumplings are said to require thicker skins made from cold-water dough in order to withstand the pressures of boiling, whereas panfried and steamed dumplings require thinner skins made from hot-water dough for their gentler cooking processes. Over the years, I’ve found that homemade wrappers of medium thickness, a scant 1/8 inch thick in the center and about 1/16 inch thick at the rim, work well for all cooking methods. Producing medium-thick wrappers is easier with hot-water dough as it is more yielding than its cold-water counterpart. The resulting wrappers taste superior to store-bought ones, and they need no water to seal. Grocery store all-purpose flour with a moderate amount of gluten, such as Gold Medal brand, works exceptionally well.
Note: Recipes for hot-water dough often call for boiling water to hydrate the dry ingredients, but I find that practice too dangerous and prefer to let the water rest first. For the just-boiled water, half-fill a kettle or saucepan with water and bring it to a boil. Turn off the heat and after the bubbling action subsides, 30 to 90 seconds (depending on the heating vessel), pour the amount needed into a glass measuring cup and use for making the dough. I typically wait no more than 2 minutes after boiling to use the water.