Preparation With processor running, drop garlic through feed tube and mince. Scrape down sides of bowl. Add roasted pepper, vinegar and cayenne and process until mixture is almost a smooth purée. Add 1/4 cup mayonnaise and process using on/off turns just until combined. Transfer sauce to a small bowl; mix in remaining 1/4 cup mayonnaise. Season to taste with salt and pepper. Cover and refrigerate at 30 minutes. (Can be prepared 1 day ahead. Keep refrigerated.) Place dip in center of platter. Arrange vegetables around dip and serve.
Preparation With processor running, drop garlic through feed tube and mince. Scrape down sides of bowl. Add roasted pepper, vinegar and cayenne and process until mixture is almost a smooth purée. Add 1/4 cup mayonnaise and process using on/off turns just until combined. Transfer sauce to a small bowl; mix in remaining 1/4 cup mayonnaise. Season to taste with salt and pepper. Cover and refrigerate at 30 minutes. (Can be prepared 1 day ahead. Keep refrigerated.) Place dip in center of platter. Arrange vegetables around dip and serve.