Berries and Cream Pavlova

Name: Berries and Cream Pavlova
Ingredients: For the meringue:; 1/2 teaspoon almond extract (or use vanilla extract); 1 teaspoon white vinegar; 1 cup (200 grams) sugar; 1 1/2 teaspoons cornstarch, arrowroot powder, or potato starch; 1/4 teaspoon ground cardamom (optional); 120 grams egg whites, from about 4 large eggs, at room temperature; 1 pinch salt; For the whipped cream and the strawberries:; 1 quart strawberries, sliced or halved; 1 tablespoon sugar; 1 tablespoon lemon juice; 1 cup heavy cream; 4 tablespoons crème fraîche; 1/4 teaspoon almond extract (optional); 1 pint raspberries; Toasted slivered almonds, for garnish (optional)