Red onions are ubiquitous on salads, sandwiches and other raw preparations partly because of their appealing deep-purple color. Reddin warns, however, â??Red onions, specifically, can have a really peppery, spicy flavor to them.â?? This variety is sweetest from March to September. Red onions pair well with equally strong-flavored greens such as kale or arugula. Reddin also recommends red onions for roasting, grilling and pickling.SUARZA Red Onions are from fresh crops of current season, we are exporting this high quality clean Red Onions, available in variable sizes from 40mm to 70mm & more. We are ranked on top by offering the best quality of Red Onions, which is known for its remarkable finish and quality.