Heat oven to 225° F. Beat the egg whites with an electric mixer on medium in a large bowl until foamy, about 1 minute. Add the cream of tartar and beat until soft peaks form, about 1 minute more. Slowly add ¾ cup of the sugar. Increase mixer speed to medium-high and continue to beat until the meringue is glossy and stiff peaks form, 4 to 6 minutes more.
Spread the meringue in a 10-inch circle on a parchment-lined baking sheet. Bake on the bottom rack until firm and dry, 2½ to 3 hours. Turn the oven off and let the meringue cool in the oven, 1½ to 2 hours (or overnight).
Toss the strawberries, lemon zest, a pinch of salt, and the remaining 1 tablespoon of sugar in a bowl. Let sit, stirring occasionally, until the berries are juicy, 20 to 30 minutes.
In a separate bowl, whip the cream and crème fraîche until soft peaks form.
Top the meringue with the cream, followed by the berries.
You May Like
Real Simple Newsletters
Get tips, inspiration and special offers delivered to your inbox.