Pretzel-Shortbread Bars

• 3 1/4 cups miniature pretzels, DIVIDED
• 1/2 cup flour
• 1/2 teaspoon baking powder
• 9 tablespoons butter, room temperature
• 1/2 cup sugar
• 1 teaspoon vanilla
• 1 egg yolk, large

1. Preheat oven to 325 degrees.
2. Line an 8 X 8 inch pan with parchment paper and spray with cooking spray.
3. Pulse 1 3/4 cups pretzels in a food processor until POWDERY, transfer 1/2 cup to a bowl, DISCARD any remaining pretzel powder.
4. Stir in flour and baking powder, set aside for Step 7.
5. Transfer REMAINING 1 1/2 cups of pretzels to food processor and pulse a few times until coarsely CHOPPED.
6. Beat butter, sugar, and vanilla with a mixer on medium speed until pale and fluffy, about 5 minutes.
7. Reduce speed to low, and beat in egg yolk, then pretzel-flour mixture, until combined.
8. Using spoon mix in 1/2 cup of the coarsely chopped pretzels.
9. Press dough evenly into pan.
10. Top dough with 1/4 cup of the coarsely chopped pretzels, pressing slightly; discard any remaining pretzels.
11. Bake shortbread until pale brown and firm in the center -about 25 minutes, maybe 30.
12. Transfer pan to a wire rack, and let shortbread cool for 1 hour.
13. Remove shortbread from pan, and cut into 1/2 inch rectangles using a serrated knife.

pretzels, flour, baking powder, butter, sugar, vanilla, egg yolk

Taken from www.food.com/recipe/pretzel-shortbread-bars-469332 (may not work)