Butter Tart Squares recipe

Ingredients

• 1 cup all-purpose flour
• ¼ cup granulated sugar
• ½ cup cold butter, cubed
• 2 tbsp butter, melted and cooled
• 2 eggs, lightly beaten
• 1 cup packed brown sugar
• 2 tbsp all-purpose flour
• ½ tsp baking powder
• ½ tsp vanilla
• 1 pinch salt
• 1 tbsp white vinegar or lemon juice
• 1 cup raisins or dried cranberries
• ½ cup chopped walnuts or pecans