Step 1
Preheat an oven to 350 degrees F (175 degrees C). Grease a 10x15 jelly roll pan and line the pan with parchment. Grease the parchment and dust with the cornstarch.
Step 2
Beat the 6 egg whites until foamy in a large glass or metal mixing bowl. Gradually add 1 1/2 cups sugar continuing to beat until stiff peaks form. Lift your beater or whisk straight up: the egg whites should form a sharp peak that holds its shape. Spread the meringue mixture in the prepared pan.
Step 3
Whisk together the cinnamon and 1/4 cup sugar in a small bowl. Sprinkle cinnamon sugar then almonds evenly over the meringue mixture.
Step 4
Bake meringue in the preheated oven until lightly brown 12 to 15 minutes. Remove pan from oven; turn over onto a foil-covered surface almond side down. Set aside to cool completely. Carefully remove parchment when cool.
Step 5
Beat the 3 egg whites until foamy in a large glass or metal mixing bowl. Add salt continuing to beat until stiff peaks form. Gradually beat in 1 cup sugar; then gradually beat in lemon juice and zest.
Step 6
In a separate bowl beat cream until stiff peaks form. Fold whipped cream into lemon mixture.
Step 7
Place the filling in the center of the meringue. Using the foil to lift the meringue fold the sides of the meringue over the filling making a log shape. Wrap the log in foil and place in freezer for at least two hours.
Step 8
To serve unwrap pavlova. Decorate with lemon slices mint leaves and strawberries. Serve frozen.