Ingredients

2 ¼ cups all-purpose flour (315 grams or about 11 ounces)
½ teaspoon salt
1 cup unsalted butter, cold (225 grams, 8 ounces or 2 sticks)
8 ounces cream cheese, cold (225 grams or 1 package)
¼ cup sour cream (56 grams, about 2 ounces)

Directions

Using a processor

Place the flour and salt in the bowl of a processor. Pulse several times to mix.

Cut the butter and cream cheese into small pieces and place over the flour.

Dollop the sour cream over.

Pulse until the pastry looks crumbly but sticks together when pressed.  It should not form a ball.

Using a mixer
For this method, have the butter and cream cheese is barely softened.  Place them, along with the sour cream, in the bowl of a mixer and beat until completely combined.  Whisk together the flour and salt.  Add to the creamed mixture and beat on low until crumbly.

Yield:  About 820 grams

Assembly of Rugelach bars 

Preheat the oven to 375°F.  Spray a 9×13 inch pan or a quarter sheet pan with a non-stick spray and set aside.

1 ¼ cups walnuts (140 grams or 5 ounces)
Pastry from above
1 cup red plum jam or any flavor jam*
1 ½ tablespoons granulated sugar
1 ½ teaspoons cinnamon
1 egg white, beaten
Sanding sugar as needed

*Whatever you like can be used.  If using preserves, puree them in a processor or blender first.

Toast the walnuts (or whatever nut is used) for 7 to 10 minutes depending upon the size of the nuts.  Cool completely.  Chop them coarsely.

Pour the dough onto the work surface.

Push it together and knead it several times to bring it together.

If it is too soft to roll easily, refrigerate it to firm it up. Divide the dough in half about 410 grams or 14 ⅓ ounces.

Roll one piece into a 9 ½ x 13-inch rectangle. Roll the second piece into a 9 x12 ½ inch piece.  Refrigerate this piece.

Place the larger piece of dough into the bottom of the sprayed pan.  Press the edges about ¼” up the sides of the pan.

Bake for 25 minutes until lightly browned and baked through.  It may appear cracked but that is fine.  Cool the crust.

I did not press my dough up the sides of the pan.  It shrank slightly.  Pressing it slightly up the sides of the pan should take care of the shrinkage.

Spread the jam over the crust.

Top with the toasted walnuts.

Combine the granulated sugar and cinnamon together and sprinkle over the nuts.

Place the refrigerated piece of dough over the top.  Let it warm up slightly.  Press it gently over the nuts and make sure it adheres to the sides of the pan.

Whisk the egg white and brush the pastry lightly with the egg white.  Sprinkle well with sanding sugar.

Cut through the top piece of dough only into 6 or 7 across and 4 down or whatever size you wish.

Bake for 35 to 40 minutes until golden brown. Cool about 10 minutes then go around the edges with a metal spatula to release them. Cut the bars following the marks on top. Clean the knife between cuts. Cool completely.

Yield:  24 to 28 bars.

Storage:  Store at room temperature for up to a week in a covered tin.