Tertiy Pirog with Plum Jam

Tertiy Pirog means grated pastry. You can use any thick jam for the filling, but when you have an abundant plum harvest, try making your own plum jam!  Ingredients

• 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

• 280 grams all-purpose flour (2 cups + 2 Tbsp, fluffed*)

• 1 cup jam or thick preserves, I used plum jam

• Powdered sugar for dusting, optional

Instructions

1. Cream together 1 stick of butter with 1/2 cup sugar and 1 egg.

2. Stir together 1/2 tsp baking soda with 1/2 tsp vinegar. Once it fizzes, pour over your batter and mix until well combined.

3. Blend in 280 grams flour.

4. Freeze 1/3 of the dough (about 180 grams) 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 9x13" rectangle.*** Transfer rolled dough with parchment paper onto a cookie sheet.

5. 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 22-25 min or until top is golden. When cooled, dust with powdered sugar if desired and cut into square cookies.

* Measure flour by fluffing it up with a spoon then spooning it into the measuring cup and scraping off the top.

**Make into a flat disc shape like you do for pie dough and then take your time rolling your dough and spreading the jam. Clean up a little. By then the dough in the freezer will probably be frozen enough. 

*** It is difficult to roll an exact rectangle, but the dough is forgiving enough to cut excess and patch in the corners. I'm lucky enough to have a 9x13 cookie sheet that works perfectly.

Recipe found here