Try this I LOVE your potato salad recipe, or contribute your own.
Why does the dressing break down when poured over cold potatoes, yet cling harmoniously to warm ones? Starch molecules in freshly steamed red-skinned potatoes act like a sponge when heat is present, eagerly absorbing the lipophilic compounds found in olive oil and rendered bacon fat. Without this thermal bridge, oil simply pools at the base of the bowl.
Balsamic vinegar provides acetic acid, which cuts through the density of the 132 grams of total fat present in the dish while simultaneously brightening the earthy minerality of the red potatoes. Meanwhile, wholegrain mustard functions as an emulsifier due to the mucilage in its seed coats, binding the aqueous vinegar and oily components into a cohesive coating rather than letting them separate into distinct phases. Parmesan contributes free glutamate, enhancing the savory qualities delivered by the salt-cured bacon.
Success hinges entirely on the steaming phase. When utilizing a Varoma attachment at Varoma temperature for 15 minutes followed by an additional 14 minutes with the internal steam basket inserted, the potatoes must reach a specific structural threshold: a knife should pierce the flesh without meeting hard resistance, yet the cubes must retain sharp edges rather than crumbling into mash.