His Whisk’ looks and functions exactly like it should, but can also separate egg whites from yolks. The head of the whisk features a basket-like depression sized to perfectly cradle a yolk as ...

3. Repeat steps with remaining eggs. Use slotted spoon to lift egg out of the water. The whites should be firm and the yolks still soft to touch; if the egg is still not quite done drop back in ...

In late 19th-century America, the fashion for aerated dishes like muffins and meringues led to an “egg-beater bubble”, when literally hundreds of mechanical egg-beaters were patented.