Puff Pastry Summer Slab Pie

This show-stopper is easy to assemble, but so impressive. The only component of this effortlessly elegant tart that needs to bake is the puff pastry base itself. Once it’s baked and cooled, you’ll top it with a creamy, fluffy spread of sweetened mascarpone cheese mixed with marzipan (i.e. almond paste), vanilla, freshly whipped cream.
You’ll want to wait until right before serving time to assemble your dessert. All of those glorious summer fruit juices are going to start seeping into your puff pastry and will lead to sogginess if prepared too far in advance.

Puff Pastry Summer Slab Pie

Ingredients
  • 1 (17.3-oz.) pkg. frozen puff pastry sheets, thawed
  • 1 large egg
  • 1 1/2 cups plus 1 Tbsp. heavy cream, divided
  • 1/2 cup granulated sugar, divided
  • 1 1/2 cups sliced strawberries (from 1 pt. berries)
  • 1 1/2 cups sliced ripe peaches (from 2 peaches)
  • 1 1/2 cups sliced ripe red plums (from 2 plums)
  • 1 teaspoon lemon zest, plus 3 tablespoons fresh juice (from 1 lemon)
  • 8 ounces marzipan (almond paste), broken into 1/2-in. pieces
  • 4 ounces mascarpone cheese, slightly softened
  • 1 teaspoon vanilla extract
  • 1 tablespoon chopped fresh mint leaves
  • 2 tablespoons honey
Instructions
  • Preheat oven to 400°F. Lightly spray a jelly roll pan with cooking spray. Place thawed sheets of puff pastry on a lightly floured surface side by side, allowing short sides to overlap just a bit, and press overlap with fingertips to adhere them. Using a rolling pin, roll combined sheets to a 18- x 13-inch rectangle. Carefully transfer dough to prepared jelly roll pan, and fit into pan, lightly pressing dough up sides of pan. Use a fork to prick holes in dough all over bottom of pan, but not on sides.
  • Whisk together egg and 1 tablespoon of the heavy cream in a small bowl. Lightly brush egg mixture over dough, and sprinkle evenly with 1 tablespoon of the granulated sugar. Bake in preheated oven until lightly golden brown, 10 to 12 minutes. Remove from oven, and allow to cool slightly.