Preheat oven to 300F.
In a bowl combine the egg whites, sugar and lemon juice.
6 egg whites, 1 ¼ cups granulated sugar, 1 teaspoon fresh lemon juice
With a hand mixer, beat the mixture on medium-high speed until thick and glossy. About 15 minutes. The meringue when ready should hold a stiff peak with a curl on the tip.
Add the cornstarch and vanilla extract and fold gently using a spatula.
2 teaspoons cornstarch, 1 teaspoon vanilla extract
Scoop the meringue onto a parchment paper-lined baking sheet. Use a spatula to make a circle with a slight indentation on top.
Place it in the oven and lower the temperature to 250F. Bake for 2 hours or until the meringue is smooth and dry.
Turn the oven off and let the meringue cool down in the oven for at least another hour.
When ready to serve, make the whipped cream topping. Add the heavy cream and sugar to a bowl and whip the cream on medium-high speed until a foam-like consistency is achieved.
1 cup heavy cream, 3 tablespoons granulated sugar
Carefully peel the parchment paper from bottom of the pavlova and transfer to a serving dish.
Add the whipped cream to the center of the pavlova, top with sliced berries and enjoy.
1 pint strawberries