Masterfoods is trialling a new range of multipacks on key confectionery lines.
Sainsbury is exclusively stocking the eight-pack 30g bags of Minstrels, Maltesers, M& M’s and Revels at £1.99 each, or two packs for £3.
A Masterfoods spokeswoman said the company would be closely monitoring the range’s progress before deciding whether or not to go ahead with a wider rollout.
She added: “If the range goes as we think it will, then we will roll it out to other grocers and multiples.
“But the range will remain exclusive to Sainsbury’s until we have had time to measure how well it is doing.”