Here’s how to do it: Cut the rhubarb stalks into 1 cm pieces, press them into a glass jar, and cover with a brine of 2-3% salt concentration (20-30g of salt per liter of water). Put on the lid and leave at room temperature for 4 days, burping if necessary, and then refrigerate. Place a small plate or a few Sweet cicely leaves on top to keep everything submerged under the liquid surface. I have added rosé pepper and Mexican tarragon/sweet mace with good results. Use it as a starter in pesto or in any recipe where you would normally use lemon juice, such as in hummus. If you find other recipes where rhubarb fits, please let me know and I’ll share them here!
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