Blueberry and Kumquat Cream Cheese Tarts with a Graham Cracker Crust
Graham Cracker Tart Shells
makes about 10 flute shell & 14 tart shells
1 cup unsalted butter, room temperature
¼ cup firmly packed light brown sugar
¼ cup Demerara sugar
¼ cup honey
2 cups all purpose flour
½ cup whole wheat pastry flour
1 tsp salt
1 ½ tsp ground cinnamon
Cream Cheese Pastry Cream
makes about 4 cups
1 cup milk
5 tbsp sugar
4 large egg yolks
2 ½ tbsp corn starch
6 oz cream cheese, cut into cubes and softened
1 tsp vanilla extract
½ cup heavy cream, whipped to soft peaks
Blueberry Compote - 2 1/2 cups
2 ½ cups blueberries
1 tbsp sugar
Make 48 halved kumquats
1 1/2 cup granulated sugar
1 1/4 cup water
For the Kumquats: Wash and pat dry kumquats. Remove calyces, cut them in half horizontally then pit with a fork. Bring sugar and water to boil, add the kumquats. Cover with a paper towel (directly on kumquats) and cook for 2 minutes over medium heat.
Remove from heat and let sit overnight at room temperature. Trash the paper towel and remove the kumquats and transfer to a bowl. Reheat the poaching syrup to a boil then remove from heat. Add the kumquats back into the syrup and let sit overnight at room temperature. Place the compote (discard the syrup) in an airtight container and keep refrigerated; good up to a week.
Spoon the pastry cream into each tart shell and top with the blueberries or candied kumquats, sprinkled with finely chopped pistachios. Serve soon after assembling.For the Cream: Combine ¾ cup of the milk and 3 tablespoon of the sugar in a medium saucepan. Bring to a simmer over medium heat. Meanwhile, in a large bowl, whisk together the egg yolks, cornstarch, and the remaining 2 tablespoons sugar. Whisk the remaining ¼ cup milk into the yolk mixture. Remove the milk mixture from the heat and add a little of the hot milk to the yolk mixture to warm it, whisking constantly to keep the yolks from cooking. Pour the egg yolk mixture into the hot milk mixture, whisking constantly as you pour.
Return the custard to the stove and bring it to a boil, whisking constantly. Let the custard cook for 1-2 minutes until it thickens. Add the cream cheese and vanilla and whisk until smooth. Using a fine sieve; strain the mixture into a clean bowl. Cover the surface with plastic wrap and refrigerate until chilled.
Beat the heavy cream over medium speed until soft peaks form. Whisk the pastry cream until smooth and fold in the whipped cream until combined.
For the Blueberries: In a medium saucepan combine 1 cup of the blueberries with the sugar. Cook over low heat until all the berries have popped and the juices come out.
For the Pastry Shell: Place the butter and sugar in a bowl of a stand mixer fitted with a paddle attachment. Cream the butter and sugar until smooth over medium speed until the mixture is smooth, fluffy and light in color. Add the honey and beat until combined; set aside.
Combine the flours, salt, and cinnamon in another bowl then add to the butter mixture in two batches, scraping down the sides of the bowl between additions. Mix until the dough is well combined. Wrap the dough in plastic and form into a disk. Chill until firm, at least an hour and up to two days.
Preheat the oven to 325°F/165°C. On a lightly floured surface roll out the dough to 1/8 inch thick. Use a rectangular cutter or knife to cut out the dough to fit the tart pans, press the dough gently into the tins, trimming away any excess dough. Prick dough all over with a fork and let chill for 20 minutes or until the dough is firm enough. Chill longer if necessary.
Bake tart shells until golden brown, about 20 minutes. Transfer to a wire rack to cool. They can be made a day in advance. Also, they can be kept up to 3 months in the freezer when stored in an airtight container.
Strain the mixture into a bowl and discard the solids. Add the rest of the blueberries into the syrup and toss to combine.