Using a sharp knife, cut the skin and all of the bitter white pith off the grapefruit. Working over a bowl, cut in between the membranes to release the sections. Add those sections to a salad bowl.
Add shrimps, olive oil and balsamic vinegar to the salad bowl. Mix the salad to make sure it is well coated with dressing. And voilà! Serve immediately. Bon appétit!
Notes
The secret to instantly transform this very simple and super easy cold shrimp appetizer into a "fancy appetizer to impress" is to serve it in beautiful glasses.Here I'm using, coupe glasses but you can use stemless wine glasses or any other kind of glasses. Just pick the most beautiful ones you have on hand.Same with the cutlery: select your best looking forks to serve it with. I recommend using small cutlery.
Do not hesitate to add a few leaves of parsley, dill or cilantro (coriander) to add a beautiful finish to your glasses.
Please keep in mind that the nutritional information is calculated using a nutrition facts calculator. It is a rough estimate and can vary greatly based on products used.