Lemon Soufflé Tartlets with Sugared Almonds and Blackberry Sauce

Name: Lemon Soufflé Tartlets with Sugared Almonds and Blackberry Sauce
Ingredients: 1 cup plus 3 to 4 tablespoons sugar, divided; 2 teaspoons cornstarch; 1/2 cup fresh lemon juice; 6 large egg yolks; Pinch of coarse kosher salt; 1/2 cup (1 stick) pareve margarine (such as Nucoa), diced; 1/2 cup sliced almonds; 1/2 tablespoon water; 1 16-ounce bag frozen blackberries, thawed; 1 1/3 cups all purpose flour; 2/3 cup (packed) powdered sugar; 1 teaspoon finely grated lemon peel; 1/4 teaspoon salt; 10 tablespoons (1 1/4 sticks) chilled pareve margarine (such as nucoa), diced; 4 large egg whites; 1/2 teaspoon cream of tartar; 1/4 cup sugar; Powdered sugar (optional); 6 4 1/2 x 3/4-inch tartlet pans with removable bottom