Preheat your oven to 300°F and line a baking sheet with parchment paper. Draw an 8-inch circle on the parchment (flip it over so pencil doesn't touch the meringue). Make sure your mixing bowl and beaters are completely dry—seriously, even a tiny drop of oil ruins everything. This step takes two minutes but saves your whole strawberry blueberry pavlova recipe.

Add 4 room-temperature egg whites and the pinch of salt to your mixer bowl. Beat on medium speed for about 2 minutes until foamy and opaque. Once you see soft peaks forming, add the cream of tartar and keep beating. You'll hear the mixer working harder as it thickens up—that's exactly what you want.

With the mixer running on high, add granulated sugar one tablespoon at a time over the next 4–5 minutes. Don't rush this part or your meringue won't hold up properly. Once all sugar is in, the mixture should be thick, glossy, and form stiff peaks when you lift the beaters. Beat for about 1 more minute, then add vanilla extract and cornstarch while mixing gently.

Spoon the meringue onto your parchment circle, building up the sides slightly higher than the center (that little well catches the whipped cream and berries). Use the back of a spoon to create some texture—those little peaks get beautifully crispy. Don't worry about perfection here; rustic looks better anyway.

Bake at 300°F for exactly 1 hour and 30 minutes—set a timer and don't you dare peek before minute 80. The pavlova should be pale cream-colored and sound hollow when you tap it. Turn off the oven and crack the door open about 2 inches, letting it sit inside for 30 minutes to cool slowly. This prevents cracking, which I learned the hard way after pulling one out too fast.

Remove the pavlova from the oven and let it cool completely on the counter (about 20 minutes). While it cools, whip together heavy cream, powdered sugar, and lemon juice until soft peaks form—don't overbeat or you'll have butter. The lemon juice adds brightness that makes this strawberry blueberry pavlova recipe shine without being sour.

Just before serving, dollop the whipped cream all over the meringue base and arrange strawberries and blueberries on top. Drizzle any berry juices over everything for that gorgeous color pop. Slice with a sharp knife (wetting it between cuts prevents sticking) and serve immediately. Your guests will ask for the recipe, I promise.