Beat the egg whites and cream of tartar in another large bowl with an electric mixer on medium - high
speed until stiff peaks form, about 2 minutes.
Pour the heavy cream into the bowl of a stand mixer or mixing bowl and
whisk until stiff peaks form, about 4 minutes.
Turn mixer off, then add white chocolate mixture and beat
just until stiff peaks begin to form, about 5 minutes.
When ready to serve, using an electric mixer, beat the heavy cream, remaining sugar and coconut cream in a medium
bowl until stiff peaks form.
In the bowl of a stand mixer fitted with the whisk attachment, beat the egg whites with the cream of
tartar until stiff peaks form.
In a large mixing bowl, beat together the powdered sugar, meringue powder, and
water until stiff peaks form, about 3 to 5 minutes.
To make the yogurt cream topping, combine the yogurt and the heavy cream and whip
well until stiff peaks form.
Gradually add sugar, 1 tablespoon at a time, beating on high
speed until stiff peaks form (tips stand straight) and sugar is nearly dissolved.
Transfer to mixing bowl and with whisk attachment whisk on
high until stiff peaks form and mixture is completely cooled.
Combine heavy cream and remaining 1 tablespoon sugar in a large bowl; beat with an electric mixer fitted with the whisk
attachment until stiff peaks form.
In the bowl of a standing mixer with the whisk attachment, beat the egg whites and
salt until stiff peaks have just started to form.
Using a mixing bowl and whisk attachment that has been chilled in the freezer, whip the heavy cream
until stiff peaks form.
Slowly add the Splenda, and beat on high
until stiff peaks form. Spread decoratively over lemon filling, then bake until golden brown.