Slice or dice the rhubarb and put in a bowl.
Dice the peach and add to the bowl.
Chop the cilantro (or any other herbs you're using) and add to the bowl.
Add olive oil, red wine and balsamic vinegar to the bowl and mix to combine.
Add sea salt, black pepper and fiber syrup/agave/honey and combine.
Taste to check if more seasoning is needed.
Place in a jar, put in the fridge and let it marinate for at least 20 minutes (but preferably even longer) if you have time.
Serve with your favorite protein, add on tacos or to your salad.