You need 7 oz of sour cream, 0.5 oz of chive, 0.25 oz of basil and some mint leaves, one melon (not too big), 2 cucumbers, salt and pepper.
Cut the herbs (chive, basil and mint) in tinny peaces. In a salad bowl, mix together the sour cream with the herbs, salt and pepper at your convenience. Cut the melon and the cucumbers in little cubes (without the skin and the pips) and put them in separated bowls. Put the three bowls in the fridge for one hour at least to be very fresh.
When it’s time to eat, mix the cucumber and melon’s cubes with the sauce in the salad bowl.
To have a nice presentation, take a plat and put the tartar in the middle with a circle and finish with a mint leave on the top. If you don’t have a circle, you can do it with a clean can (not too high) without the two lids. Repeat this operation for each of the guests.
Bon appétit !