Line a large baking tray with baking parchment,
Pre-heat the oven to 150 degrees,
Separate the egg whites from the egg yolks and place the whites into the bowl of a stand mixer and beat the whites with a whisk attachment until they form stiff peaks,
Gradually add the sugar- spoon by spoon- to the egg whites and continue to whisk the whites until all of the sugar has been added then fold in the vanilla powder,
Using a spatula place dollops of the meringue onto the baking sheet, ensuring you have six equally sized meringues,
Place the meringues into the oven, turn the heat down to 130 degrees and bake for 1 hour then turn your oven off and leave the meringues to cool down in the oven.
Line 2 baking sheets with tin foil and heat your grill to medium,
Place the fruits on separate baking sheets and sprinkle them generously with Demerara sugar,
Grill the fruits separately for approximately 10 minutes, keeping an eye on them so they do not burn. If the grill is too hot the fruit will burn, it needs to gently sizzle away before being removed to cool down.
Beat the double cream in a stand mixer or with a hand held whisk until soft peaks form.
You may want to add a spoon of icing sugar to sweeten up the cream (optional).