Combine the broth, brown sugar, rice wine vinegar, fish sauce, peanut butter, soy sauce and lime juice in a small food processor. Blend until smooth.
Use as a dipping sauce, on salad or toss in your favorite stir fry.
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Notes
This sauce can be whisked, but it might have little bits of peanut butter. If you are putting it into a hot stir fry, this will melt easily. if are using it for a dressing or dipping sauce, I highly recommend blending it to make it smooth.