Billy Boy’s Butter Tart Slice

Ingredients

• Cooking spray
• 1 1/2 cups all-purpose flour
• 2 tablespoons confectioners’ sugar
• 1/2 cup butter, softened
• 1 1/2 cups brown sugar
• 2 eggs, well beaten
• 1/4 cup melted butter
• 1 tablespoon white vinegar
• 1 teaspoon vanilla extract
• 1 cup raisins

Directions

Preheat oven to 325 degrees F (165 degrees C). Spray a 9×9-inch pan with cooking spray.

Whisk flour and confectioner's sugar together in a bowl; stir in 1/2 cup butter until crumbly. Press flour mixture evenly into the bottom of prepared pan.

Bake in the preheated oven for 5 minutes. Remove pan from the oven, leaving oven at 325 degrees F (165 degrees C).

Beat brown sugar, eggs, 1/4 cup melted butter, vinegar, and vanilla extract together in a bowl until smooth; stir in raisins. Pour sugar mixture over baked crust.

Bake in the oven until bubbly and golden, about 35 minutes; cool before slicing.