Butter Tart Shortbread Bars

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

2. Beat 7/8 cup butter and confectioners' sugar together with a spoon in a large bowl until smooth. Stir in flour and salt. Press mixture into a 9-inch square baking pan.

3. Bake in the preheated oven until lightly golden, about 14 minutes. Remove to cool 10 for minutes, leaving oven on.

4. Beat eggs, brown sugar, 3 tablespoons melted butter, and vanilla extract together in a bowl. Sprinkle raisins over cooled crust; pour egg mixture over raisins.

5. Bake in the preheated oven until top springs back when touched, about 30 minutes. Cool completely before cutting into bars.

Cook's Note:

If dough seems too dry, stir in 1 to 2 tablespoons softened butter.