Plum and Frangipane Tart

Preparation

1. Step 1

   Heat oven to 350 degrees. Unfold the sheet of puff pastry on a piece of parchment paper set in a rimmed baking sheet. Trim the sides if necessary to make a neat rectangle. Using a sharp paring knife, score a 1-inch border around the puff pastry, taking care not to cut through the sheet. Using a fork, dock the sheet all over but within the border.

2. Step 2

   Bake the puff pastry just until lightly golden, about 24 minutes. (Keep in mind that you will be baking it again, so it doesn’t have to be completely baked through yet.) Remove from the oven. Increase the oven temperature to 400 degrees.

3. Step 3

   While the pastry bakes, prepare the frangipane: In a large bowl, whisk together the eggs. Add the nut flour, brown sugar, butter and salt, and beat by hand using a wooden spoon or whisk, or with an electric mixer, until well-combined. (If there are small bits of butter in the frangipane, that’s OK.)

4. Step 4

   In a small bowl, combine the granulated sugar and cardamom.

5. Step 5

   When the puff pastry is out of the oven, use the back of a spoon to gently press down the pastry within the border. Immediately spread the frangipane over the pastry within the border. Arrange the fruit over the top of the frangipane. Sprinkle the cardamom sugar over the fruit.

6. Step 6

   Bake until the frangipane is golden brown in spots and set in the center, 30 to 35 minutes, tenting the edges of the pastry with foil if they are browning too quickly.

7. Step 7

   Transfer to a rack to cool slightly. Serve warm or at room temperature.