Rhubarb and Raspberry Crostata

By jgroeneveld

This dough with its addition of whole wheat flour for a nutty taste and tender texture, is a must in your baking repertoire."

Ingredients

• Crust
• 1 cup unbleached all-purpose flour
• 1/2 cup whole wheat flour
• 1 1/2 Tbsp sugar
• 1/2 tsp kosher salt
• 3/4 cup (1 1/2 sticks) chilled unsalted butter, cubed
• 1 large egg
• 1 Tbsp whole milk
• Filling
• 1/4 cup cornstarch
• 4 cups 1/2" thick slices of rhubarb (about 16 oz to 20 oz)
• 6 oz. fresh raspberries
• 2/3 cup sugar
• 1 large egg, beaten
• Raw Sugar
• Sweetened whipped cream or vanilla ice cream for serving

Details

Preparation time 60mins
Cooking time 135mins

Preparation

Step 1

Crust: Combine both flours, sugar, and salt in a processor; blend for 5 seconds. Add butter; pulse until butter is reduced to pea size pieces. Whisk egg and milk in a small bowl to blend; add to processor until moist clumps form. Gather dough into a ball; flatten into a disk. Wrap in plastic wrap; chill at least 1 1/2 hours. Do ahead- can be done 2 days before. Keep chilled.

Filling: Dissolve cornstarch in 3 Tbsp water in small bowl; set aside. Combine rhubarb, raspberries, and sugar in large heavy saucepan. Cook over medium heat, stirring often until sugar dissolves and juices are released, about 4 minutes. Stir in cornstarch mixture and bring to a boil (rhubarb will not be tender and slices will still be intact). Transfer to a bowl. Chill until cool, about 30 minutes.

Preheat oven to 400* degrees. Roll out dough on floured parchment paper to 12" round; brush with beaten egg. Mound filling in center of crust; gently spread out, leaving 1 1/2 inch border. Gently fold edges of dough over filling, pleating as needed. Brush border with egg; sprinkle with raw sugar. Slide parchment with crostata onto a large rimmed baking sheet and bake until crust is golden brown and filling is bubbly, about 45 minutes. Let crostata cool on baking sheet on a rack. Transfer crostata to a platter, cut into wedges, and serve with whipped cream or ice cream.