Sea scallops with grapes and verjus

Ingredients

• ½ cup white verjus (unfermented grape juice)
• 1 tablespoon white balsamic vinegar
• Grated zest of 1⁄3 lemon
• 1 teaspoon fresh lemon juice
• 5 basil leaves, roughly torn
• Salt
• ¾ pound sea scallops, thinly sliced horizontally
• Extra-virgin olive oil
• Sea salt
• 20 seedless grapes, thinly sliced
• A handful of small basil leaves