½cup(45g)quick-cooking oats - (not instant or old-fashioned)
½cup(60g)white whole wheat flour - (milder and better for pastry than regular whole wheat)
1cup(120g)unbleached, all-purpose flour
1teaspoon(1teaspoon)salt
1teaspoon(1teaspoon)sugar
⅓cup(68g)cold or frozen shortening - (if you are averse to shortening, butter may be substituted. However, pop-tarts should be frozen before baking.)
2tablespoons(28g)cold butter - chopped
1large(50g)egg
⅓cup(76g)buttermilk or plain fat-free yogurt
Frosting
½cup(60g)powdered sugar
1 teaspoon(1 teaspoon)butter
1tablespoon(1tablespoon)coffee or milk
Instructions
Filling: In a bowl or food processor, combine 1/3 cup brown sugar, 1 1/2 teaspoons unbleached, all-purpose flour, 1 1/2 teaspoons cinnamon, and 1 tablespoon raisins (optional). Pulse or mix until the raisins are broken into small pieces. Set aside.
Make the Dough: Combine 1/2 cup quick-cooking oats, 1/2 cup white whole wheat flour and 1 cup unbleached, all-purpose flour, 1 teaspoon salt, and 1 teaspoon sugar in the bowl of a food processor and process for 15-20 seconds. Add 1/3 cup cold or frozen shortening and 2 tablespoons cold butter and pulse 12-15 times. The mixture should be coarse. Whisk 1 large egg and 1/3 cup buttermilk or plain fat-free yogurt Add to the flour mixture and pulse 5-7 times or until combined. Remove the lid and blade. Use hands or a spatula to press the dough together. All crumbs should come together into a ball.
Roll and Freeze: Divide dough in half. Place each half into a separate gallon-size zippered plastic bag. Place the dough ball at the center of the bag. Roll out evenly. Freeze until firm.
Shape the Pop Tarts: Remove frozen dough from bags and trim edges. Cut into 12 rectangles. Place 6 rectangles on a parchment-lined sheet. Add a spoonful of preferred filling to the center of each. Top with the remaining 6 rectangles and press edges with a fork to seal.Return assembled pop tarts to the freezer until firm.
Bake: Preheat oven to 425°F (220°C).Place frozen pop tarts on a baking sheet and bake 15–20 minutes, until lightly golden.
(Optional) Frost: Mix ½ cup powdered sugar, 1 teaspoon butter and 1 tablespoon coffee or milk (coffee gives a brown color). Spread on cooled pop tarts.
Notes
Make-ahead: Freeze unbaked pop tarts on a tray, then wrap and store. Bake straight from frozen. Storage: Cool completely before storing. Freeze baked pop tarts up to 1 month.