Louis Osteen makes his mayonnaise fresh, but we've substituted bottled mayonnaise to avoid raw egg yolks.
Aïoli can be made 1 day ahead and chilled, covered.
Recipe information
Total Time
30 min
Yield
Makes about 3 1/2 cups
Ingredients
Preparation
Step 1
Toss onion, tomatoes, bell pepper, and chile with oil in a shallow (1-inch) baking pan and arrange vegetables, cut sides down, in 1 layer. Roast, turning onion once or twice, until vegetables are charred and tender, 15 to 20 minutes.
Step 2
Discard skins from tomatoes and bell pepper. Chop tomatoes and drain in a sieve, discarding juices. Finely chop onion and bell pepper. Mince chile.
Step 3
Mince garlic and mash to a paste with kosher salt. Blend together mayonnaise, garlic paste, and black pepper in a food processor. Add chile, about one fourth at a time, tasting for desired heat. Transfer to a bowl and stir in tomatoes, bell pepper, onion, and vinegar.