Butter Tarts Recipe - Food.com

Ingredients

• 1 1/2 cups all-purpose flour
• 1/2 teaspoon sugar
• 1/4 teaspoon salt
• 4 1/2 tablespoons cold butter, cut into bits
• 2 tablespoons cold vegetable shortening
• 1 large egg, beaten lightly
• 1 teaspoon vanilla
• 1/4 cup butter, melted and cooled
• 1 cup firmly packed brown sugar
• 1 tablespoon distilled white vinegar
• 1/4 cup raisins (optional)