Grandma's Strawberry-Rhubarb Pie

Ingredients

• Large granule sugar
• 1 egg white beaten with 1 teaspoon water
• 3 tablespoons butter, cubed small
• 1 teaspoon vanilla extract
• ½ teaspoon ground cinnamon
• ½ teaspoon lemon juice
• ½ teaspoon lemon zest
• + 14 more ingredients
• • 1 tablespoon all-purpose flour
  • 2 tablespoons minute tapioca
  • 1 ½ cups sugar (1 ¼ cups for high altitude)
  • 2 ½ cups de-stemmed, washed and cut strawberries (in larger pieces)
  • 2 ½ cups chopped red rhubarb, fresh
  • ¼ cup ice cold water
  • 2 teaspoons vinegar
  • 1 egg
  • Pinch salt
  • ¼ cup salted butter
  • ½ cup butter-flavored shortening (recommended: Crisco)
  • 3 teaspoons sifted powdered sugar
  • ½ cup cake flour (recommended: Soft As Silk)
  • 2 cups all-purpose flour, plus additional flour as needed, up to ¼ cup

1. Using 2 pastry blenders, blend the flours, sugar, shortening, butter and salt. Whisk the egg, vinegar and water in a 2-cup measure and pour over the dry ingredients incorporating all the liquid without overworking the dough. Toss the additional flour over the ball of dough and chill if possibl...

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