By America's Test Kitchen
The smoky char of the grill brings a whole new dimension to plain old Caesar salad. To develop good char and maintain crisp lettuce without ending up with scorched, wilted, even slimy leaves, we used sturdy, compact romaine hearts, which withstood the heat of the grill better than whole heads.
Halving them lengthwise and grilling on just one side gave them plenty of surface area for charring without turning limp.
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