4 (1-inch thick)slices Italian breador other sturdy bread
1mediumonioncut into ¾-inch thick slices
4tablespoonsolive oildivided
Salt and freshly ground black pepper
1pound ripe tomatoes (about 3)cut into 1-inch pieces
½English cucumberquartered lengthwise and cut into 1-inch pieces
1 ½tablespoonsred wine vinegar
1clovegarlicgrated
1teaspoonDijon mustard
¼cupthinly sliced fresh basil
Instructions
Prepare the grill for medium-high direct heat (450°F).
Place the bread and onion slices on the grill tray. Brush with 1 tablespoon of the oil. Season the onion with salt and pepper.
Grill, turning the bread and onion slices once, until lightly charred and the onion has softened, 3 to 4 minutes per side. Remove from the grill and let cool while you make the dressing.
In a medium bowl, whisk the remaining 3 tablespoons olive oil, red wine vinegar, garlic, and Dijon together. Season to taste with salt and pepper.
Place the tomatoes in a large serving bowl and season with salt. Let the tomatoes sit for 5 minutes. This will help to draw out the juices.
Tear the bread slices into 1-inch chunks and chop the onions.
Add the cucumber, bread, and onions to the tomatoes and drizzle the dressing over. Stir to combine and garnish with fresh basil.
Notes
Get ahead--Grill the bread and onions and prepare the dressing a few hours in advance.
No grill tray?--If you don't have a grill tray, slide the onion slices onto a couple of skewers to prevent them from falling apart (and falling through the grill!) while cooking.