This post may contain affiliate links. Read my disclosure policy. I love testing and eating new cookies. I especially love cookies made with any kind of fruit. These are called “Tertiy Pirog” meaning grated pastry since the final layer of the cookie bars is grated over the top. This recipe was shared with me in a comment on my blog by one of my readers. The recipe was left anonymously so if it was you and you’r reading this, thank you!! My hubby really liked these cookies. They will have you reaching for a tall glass of milk. Enjoy!
Ingredients for Tertiy Pirog:
1 stick (1/2 cup) butter, softened at room temp 1/2 cup granulated sugar 1 egg, room temp 1/2 tsp baking soda 1/2 tsp white vinegar 2 cups + 2 Tbsp all-purpose flour *measured correctly 1 cup jam or thick preserves (I used strawberry spread from Costco) Powdered sugar for dusting, optional
How to Make Strawberry Cookie Bars:
Using a stand mixer, cream together 1 stick of butter with 1/2 cup sugar and 1 egg.
Stir together 1/2 tsp baking soda with 1/2 tsp vinegar. Once it fizzes, pour over your batter and mix until well combined.
Blend in 2 cups + 2 Tbsp flour. P.S. I measured flour by fluffing it up with a spoon then spooning it into the measuring cup and scraping off the top for exact measurements. *Watch our easy video tutorial on how to measure correctly
Freeze 1/3 of the dough for 45 min to 1 hr. Place remaining 2/3 of dough onto a large sheet of parchment paper, sprinkle lightly with flour and roll into a 9×13″ rectangle. Transfer rolled dough with parchment paper onto a jelly roll pan (rimmed cookie sheet; I used a 10×15″). Cover rolled dough with plastic wrap and leave at room temp until remaining dough is ready for grating.
Spread 1 cup of strawberry preserves over the top (or your favorite preserves – pick one with a little bit of sour/tartness). Grate the frozen piece of dough evenly over the top of your preserves. Bake at 350 for 25 min or until top is golden. When cooled, dust with powdered sugar if desired and cut into square cookies.
