Preheat oven to 250°F. Line 2 baking sheets with parchment.
In a bowl using an electric mixer, beat egg whites, cream of tartar, and vanilla extract on high speed until foamy.
Add Splenda Sugar Blend, 1 tablespoon at a time, beating until sweetener is dissolved and stiff peaks form.
Spoon heaping tablespoonfuls of mixture onto baking sheets.
Bake for 1 hour, 15 minutes; turn oven off. (If meringues begin to brown, reduce oven temperature to 225°F). Let meringues stand in closed oven with the light on for 8 hours or overnight.
Just before serving, top each meringue with whipped topping and a strawberry.