Add the water, tomatoes, celery, basil, pepper, heavy cream, Greek yogurt, and lemon juice to a blender and blend on high until very smooth. This will take some time since the vegetables are raw.
Once smooth, turn the blender to low and add the Keto Chow. Blend until completely mixed in.
With the blender still running, tap the guar gum through the hole in the blender lid and blend for another five seconds.
Pour the gazpacho into serving dishes and add the chopped prawns.
Notes
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