Follow these steps to create your amazing Mini Pavlovas:

1. Preheat Oven: Preheat your oven to 250°F (120°C). Line a baking sheet with parchment paper.
2. Whip Egg Whites: In a clean, dry mixing bowl, beat the egg whites on medium speed until soft peaks form.
3. Add Sugar Gradually: Slowly add the granulated sugar, one tablespoon at a time, while continuing to beat until the mixture is glossy and forms stiff peaks.
4. Incorporate Vinegar and Cornstarch: Gently fold in the vinegar and cornstarch, being careful not to deflate the meringue.
5. Shape the Meringue: Use a spoon or piping bag to dollop or pipe the meringue onto the prepared baking sheet, creating small nests with a slight indentation in the center.
6. Bake: Place the baking sheet in the preheated oven and bake for 1 hour. The meringues should be crisp on the outside and soft inside.
7. Cool Completely: Turn off the oven and leave the meringues inside to cool completely, about 1 hour.
8. Prepare Whipped Cream: In a separate bowl, whip the heavy cream, powdered sugar, and vanilla extract until soft peaks form.
9. Assemble: Once the meringues are cool, fill the center of each one with whipped cream.
10. Top with Fruits: Decorate each Mini Pavlova with your choice of fresh fruits.
11. Garnish: Optionally, add mint leaves for a pop of color and freshness.

These steps will guide you in creating delightful and impressive Mini Pavlovas that are sure to be a hit!