1. Preheat the oven to 180°C (350°F).
2. Wash and dice the pears on your cutting board, then put them in a bowl.
3. Crack the eggs into two separate bowls, separating the whites from the yolks.
4. Beat the egg whites until stiff peaks form, adding a pinch of salt.
5. Add the beaten egg whites to the pears and mix well.
6. Gradually add the sugar while continuing to whisk.
7. Transfer the meringue mixture into a piping bag fitted with a small plain tip, or alternatively, use a plastic freezer bag. Pipe small meringue domes onto a baking sheet lined with parchment paper. Sprinkle all the domes with a little ground black pepper.
8. Bake for 20 minutes to 1 hour. Remove from the oven and let cool before gently removing the mini meringues.
9. Peel the kiwis, melon, and pineapple. Cut them into cubes.
10. Remove the stems from the strawberries and cut them in half or quarters depending on their size.
11. Divide the blueberries among 6 jars. Add a layer of kiwi to each jar and lightly sprinkle with Guérande sea salt.
12. Add the diced pineapple and melon, and lightly sprinkle with salt.
13. Finish with a layer of raspberries and strawberries. Lightly sprinkle with Guérande sea salt again.
14. Arrange a few mini pear meringues on top.