PEACH-RASPBERRY ICE CREAM CAKE

Steps:

• Heat oven to 350 degrees. Butter a 9-by-13-inch baking pan and line with parchment paper. Butter the parchment.
• Macerate fruit: In a small bowl, combine chopped peaches and 1 tablespoon sugar. In another bowl, combine mashed raspberries with 1 tablespoon sugar. Let both macerate for at least 1 hour while you bake the cake.
• Prepare cake: In a medium bowl, whisk together flour, baking powder and salt.
• In a large bowl, with an electric mixer on medium, beat together butter and 1/2 cup sugar until light and fluffy, about 3 minutes. Scrape down sides of bowl, then beat in vanilla extract and the whole egg. Scrape down sides of bowl again, then beat in egg yolk. With the mixer on low, beat in half the flour mixture, followed by the milk, and then the remaining flour mixture.
• Transfer batter to pan and spread it into a thin, even layer. Bake until cake is golden brown and springs back when pressed lightly, 10 to 12 minutes. Let cool in pan on a rack for 10 minutes. Run a small thin knife or spatula around the cake, then carefully turn out onto rack to cool completely. Discard parchment.
• Prepare ice cream: In a large bowl, combine preserves, evaporated milk, salt and macerated peaches, plus any juices. In another large bowl, whip cream to stiff peaks (do not overbeat). Gently fold cream into peach mixture.
• Assemble ice cream cake: Line a 9- by-5-inch loaf pan with plastic wrap, leaving a 6-inch overhang on each side.
• Cut cooled cake into thirds, making three rectangles 9 by 4 1/3 inches each. (You want a 1/4-inch border of space around each cake layer once it's in the loaf pan; depending on the shape of your pan, you may need to trim cake.)
• Add a third of the cream mixture (about 1 1/3 cups) to pan and smooth into an even layer. Top with one cake layer, pressing down slightly so cream comes up and around sides of cake evenly. Drain mashed raspberries, then spread half the fruit onto cake. Repeat process a second time, adding another third of the cream; a cake layer, pressing down slightly so cream comes up and around sides; and remaining raspberries. Add remaining cream, then top with final cake layer, pressing down slightly so cream comes up and around sides. Use plastic overhang to wrap cake up tightly. Freeze until firm, at least 8 hours.
• To serve, toss sliced peach with 1/2 cup raspberries and 1 tablespoon sugar and let macerate until a bit juicy, about 10 minutes. Remove cake from freezer, unwrap, and lift out of pan. Invert onto a serving plate and let stand at room temperature for 5 to 10 minutes. Top with peach-raspberry mixture.