Three bowls are better than one, especially when they come in different sizes and stack up snugly in the cupboard. Look for sets at housewares stores.
Why a Set?
A typical three-bowl set includes a 1 1/2-quart, 2 1/2-quart, and 4- or 5-quart bowl to cover a range of cooking tasks. Use the small bowl for beating eggs, the medium for whisking dry ingredients, and the large for whipping cream, mixing batters, and tossing salads. When not in use, the bowls nest inside one another for efficient storage. Look for deep, sturdy bowls with a flat base (for stability) and a curled rim or a lip (for drip-free pouring).
Besides being unbreakable, noncorrosive, and dishwasher-safe, stainless steel is a good conductor of temperature: Chocolate melts quickly when heated over a pan of simmering water, and cream stays cold when whipped in a bowl that has been chilled in the freezer for a few minutes.