Strawberry Jam Crumble Bars

Step 1
Preheat the oven to 350 degrees F (175 degrees C).

Step 2
Combine flour, powdered sugar, nuts, and salt for base in a large bowl. Add butter and cut in with a pastry blender until mixture resembles cornmeal.

Step 3
Transfer mixture to a 12×18-inch baking sheet and flatten with the palm of your hand into an even layer. You do not need to butter the pan; the dough has enough butter in it so it will not stick.

Step 4
Bake in the preheated oven for 20 minutes. Remove from the oven and let cool for 15 minutes. Leave oven on.

Step 5
Meanwhile, combine 1 cup flour and sugar for topping in a bowl. Add butter and cut in with a pastry blender until mixture resembles coarse crumbs; you do not want big clumps of butter.

Step 6
Spread jam over the cooled base layer, then sprinkle on the topping mixture. Return to the oven and bake until topping is golden brown, 10 to 15 minutes.

Step 7
Let cool for 15 minutes before cutting into 24 bars.