Raspberry-Rhubarb Slab Pie

Total Time Prep: 30 min. + chilling Bake: 45 min. + cooling
Yield 24 servings
Test Kitchen Approved
Slab pie is a pastry baked in a jelly-roll pan and cut into slabs like a bar cookie—or a pie bar, if you will. My grandfather was a professional baker and served pieces of slab pie to his customers back in the day. Here is my spin, featuring rhubarb and gorgeous red raspberries. —Jeanne Ambrose, Milwaukee, Wisconsin

Ingredients

  • 3-1/4 cups all-purpose flour
  • 1 teaspoon salt
  • 1 cup butter
  • 3/4 cup plus 1 to 2 tablespoons 2% milk
  • 1 large egg yolk
  • 2 cups sugar
  • 1/3 cup cornstarch
  • 5 cups fresh or frozen unsweetened raspberries, thawed and drained
  • 3 cups sliced fresh or frozen rhubarb, thawed and drained
  • VANILLA ICING:
  • 1-1/4 cups confectioners' sugar
  • 1/2 teaspoon vanilla extract
  • 5 to 6 teaspoons 2% milk

Directions

  1. In a large bowl, combine flour and salt; cut in butter until crumbly. Whisk 3/4 cup milk and egg yolk; gradually add to flour mixture, tossing with a fork until dough forms a ball. Add additional milk, 1 tablespoon at a time, if necessary.
  2. Divide dough into 2 portions so that 1 is slightly larger than the other; cover each and refrigerate 1 hour or until easy to handle.
  3. Preheat oven to 375°. Roll out larger portion of dough between 2 large sheets of lightly floured waxed paper into an 18x13-in. rectangle. Transfer to an ungreased 15x10x1-in. baking pan. Press onto the bottom and up sides of pan; trim crust to edges of pan.
  4. In a large bowl, combine sugar and cornstarch. Add raspberries and rhubarb; toss to coat. Spoon into crust.
  5. Roll out remaining dough; place over filling. Fold bottom crust over edge sof top crust; seal with a fork. Prick top with a fork.
  6. Bake until golden brown, 45-55 minutes. Cool completely on a wire rack.
  7. For icing, combine confectioners' sugar, vanilla and enough milk to achieve a drizzling consistency; drizzle over pie. Cut pie into squares.

Nutrition Facts

1 piece: 247 calories, 8g fat (5g saturated fat), 29mg cholesterol, 159mg sodium, 42g carbohydrate (25g sugars, 2g fiber), 3g protein.

Slab pie is a pastry baked in a jelly-roll pan and cut into slabs like a bar cookie—or a pie bar, if you will. My grandfather was a professional baker and served pieces of slab pie to his customers back in the day. Here is my spin, featuring rhubarb and gorgeous red raspberries. —Jeanne Ambrose, Milwaukee, Wisconsin
Recipe Creator

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