Quantum 56 (closed)
1 egg yolk
1 teaspoon Dijon mustard
Salt and freshly ground black pepper
1 teaspoon roasted-garlic purée
1/2 cup olive oil
1/2 cup canola oil
2 tablespoons lemon juice
2 tablespoons freshly grated horseradish
Blend together in a bowl the yolk, mustard, 1/2 teaspoon salt, and garlic purée. Slowly drizzle in the oils, whisking constantly until the aïoli is thick. Stir in the lemon juice and horseradish, and season to taste with salt and pepper.
Fortunato's Swordfish Club Sandwich.