It works. According to the recipe of cold rice bumps, cold rice bumps are traditional home-cooked dishes in China. Usually, cold rice is mixed with flour and water, then the dough is kneaded into small pieces, cooked in boiling water, fished out and mixed with various seasonings. So cold rice bumps are used with cold rice. Knead the cold rice into small balls, and make sure to make a delicious knot.