Thirty-five minutes, mostly in the oven, and a crunchy savoury snack with 9g of protein and 8g of fibre per portion. Dry the chickpeas properly or they will never go crisp.

Most savoury snacks are refined starch and oil. This one is a whole pulse, which changes what happens after you eat it.
A portion of chickpeas carries about 9g of protein and 8g of fibre, a combination that is rare in a snack. Both slow the absorption of the starch in the chickpeas themselves, and pulses consistently produce one of the lowest glucose responses of any carbohydrate food. That is why this is tagged for blood sugar and the crisp packet is not.
The fibre does a second job. Chickpeas are rich in fermentable fibre that feeds gut bacteria, and the bacteria in turn influence how much oestrogen is reabsorbed from the gut rather than excreted — a mechanism covered here: the gut and oestrogen.
Chickpeas also bring folate, magnesium and non-haem iron. For women after menopause, when the risk of insulin resistance rises, swapping refined snacks for pulses is one of the simplest changes with good evidence behind it: menopause and diabetes risk.
The honest caveat is quantity. A quarter of the tray is the portion here; a whole tray eaten from the oven is roughly 900 calories.
Use extra-virgin olive oil rather than a seed oil: it holds up to the roasting temperature, and it adds its own polyphenols.