Step 1: Prepare the Pickle-Brined Strawberries (Optional, but Recommended). In a small bowl, combine the dill pickle brine and water. Add the reserved 1/2 cup of strawberries to the brine. Let them sit at room temperature while you prepare the other components, or refrigerate for up to a few hours.

Step 2: Combine Sugar and Cornstarch. Stir together 1 ½ cups of the sugar and the cornstarch in a medium bowl. Set aside.

Step 3: Whip Egg Whites. Beat the egg whites, vanilla extract, and salt using a stand mixer with a whisk attachment, or hand mixer, at medium speed until frothy, 1 to 2 minutes.

Step 4: Gradually Add Sugar Mixture. Increase the mixer speed to medium-high. Add the sugar mixture gradually, a few tablespoons at a time, beating until stiff glossy peaks form, 6 to 8 minutes. Add the dill pickle powder with the last addition of sugar.

Step 5: Preheat Oven and Prepare Baking Sheet. Preheat oven to 225°F (110°C). Line a rimmed baking sheet with parchment paper.

Step 6: Spread Meringue. Spoon the egg white mixture onto the center of the prepared pan. Spread and flatten the mixture using the back of a large spoon or a rubber spatula into a 10-inch circle in an even layer, creating a slight indentation in the center.

Step 7: Bake. Bake until crisp, about 2 hours and 15 minutes.

Step 8: Cool. Turn off the oven and let the pavlova cool on the pan in the oven, about 2 hours.

Step 9: Prepare Strawberry Topping. Stir together the remaining (non-brined) strawberries, 2 tablespoons of the remaining sugar. Set aside.

Step 10: Whip Cream. Beat the cream and the remaining 2 tablespoons sugar at medium speed using a stand or hand mixer until soft peaks form, about 2 minutes.

Step 11: Fold in Yogurt. Gently fold in the yogurt until combined.

Step 12: Drain brined strawberries. Drain the brined strawberries.

Step 13: Assemble Pavlova. Spread the whipped cream over the cooled pavlova. Top with the drained, pickle-brined strawberries and the regular sugared strawberries.

Step 14: Serve. Serve immediately. Optionally, garnish with fresh dill, and offer dill pickle relish on the side.