IGA has Heinz Seriously Good Hot Harissa Mayonnaise on special for $5.00 (was $7.40), saving you $2.40 on a 295ml jar. If you're closer to a Coles, it's even cheaper there at $4.60, down from $5.80. This one earns its place in the fridge door, slather it on a wrap, use it as a dipping sauce for halloumi, or spread it thick on a weekend burger for a kick that actually lands. Harissa mayo this good usually sits at a price that makes you put it back on the shelf, so right now is the time to grab a spare.