No-Bake Strawberry Dessert Lasagna

Combine strawberries, 1 teaspoon vanilla, cornstarch, salt, water, granulated sugar and lemon juice in a large saucepan. Cook, stirring frequently, over medium heat until boiling. Once boiling, continue cooking, stirring constantly, until thickened and the strawberries are beginning to break down, about 2 minutes more. Remove from heat. Refrigerate until the mixture reaches room temperature, about 1 hour.

Meanwhile, whip cream with an electric mixer until firm peaks form. Fold in ricotta, confectioners' sugar, lemon zest and the remaining 1 teaspoon vanilla. Refrigerate until ready to assemble.

To assemble "lasagna": Lay 7 1/2 graham crackers along the bottom of a 9-by-13-inch pan. Spread half of the ricotta mixture over top, followed by half of the strawberry mixture and half of the blueberries. Lay another 7 1/2 graham crackers over the top and repeat with the remaining ricotta mixture, strawberry mixture and blueberries. Cover and refrigerate until the graham crackers are very soft, about 8 hours or overnight.