The Cuisinart Mini-Prep food processor stands 8 inches tall and just over 4 inches wide, but don’t let the size fool you. The base houses a motor so powerful that you need to stabilize it with one hand when using the high setting to whip up a strawberry-banana smoothie for one in less than a minute. The clear plastic prep bowl locks into place with a simple twist, while the blades can be set sharp side up for chopping onions or grating Parmesan cheese,...