|1/3||cup finely chopped mix of shallot, red onion, white onion, sweet onion, and leek (pale green and white part only)|
|3||tablespoons chopped scallion|
|1||small garlic clove, finely chopped|
|4||slices (each 1/2-inch thick) country bread, halved crosswise|
|3/4||pound aged Cheddar, coarsely grated|
|4||tablespoons ( 1/2 stick) unsalted butter, at room temperature|
1. Heat a large griddle over medium-low heat until hot.
2. In a bowl, combine the onion mixture, scallion, and garlic. Make 4 sandwiches with bread, cheese (pack it on), and onion mixture. Butter both sides of the sandwiches.
3. Set the sandwiches on the griddle and cook for 5 to 8 minutes, turning once, until the bread is golden and the cheese melts. Adapted from Gourmet