Rachel Lambert: forager, author, guide
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Japanese knotweed jam recipe


A delectably thick, fruity-flavoured jam which is gorgeous as a layer in Japanese knotweed frangipane or lathered onto toast. This is one of the recipes from my book: Wild and Sweet - forage and make 101 seasonal desserts.

If your not familiar with this as an edible wild food, I highly recommend it for flavour, health benefits and as a way to manage the spread of this invasive plant. Find out more about Japanese knotweed on these blogs; Eating Japanese knotweed and Tricks for making Japanese knotweed edible.

Japanese Knotweed Jam recipe

To make this recipe you'll first need to make a puree from the knotweed. This is an unembellished, unsweetened ingredient for cake, jam or savoury recipes. The leftover liquid is also perfect for making Japanese knotweed syrup.

I love using brown sugar for sweet and wild treats as it contributes more nutrients. It does also make a darker jam. If you prefer, you can add a squeeze of lemon juice before boiling the puree to help keep the colour.

Making wild knotweed jam from Japanese knotweed

Japanese knotweed jam

Delectably thick, with a surprisingly fruity-flavoured which is gorgeous as a layer in Japanese knotweed frangipane or lathered onto toast.

The full recipe is in my book Wild and Sweet (page 45) along with five other Japanese knotweed recipes amongst 101 seasonal and foraged desserts.

2 comments on “Japanese knotweed jam recipe”

  1. I enjoy reading, imagining and looking at photos.... still not making the time to make the jams . Look so yummy

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