Seasoning and thickening: Finely chop the onion, sauté in lard, and add to the soup towards the end of cooking. Then add the reserved peas blended with garlic. Season the pea soup with salt ...

There are many ways to thicken soup: a roux of butter and flour, a slurry of water and flour or cornstarch, and dairy ...

If making ahead, add extra water when reheating, as the soup will thicken as it cools ... be bold with the seasoning to get the classic pea soup flavour. Freeze leftovers in portions in sealed ...