Chocolate Raisin Walnut Pie - California Raisins

Ingredients

• 1 / 4 Cup plus 2 tablespoons shortening*
• 1 / 4 Teaspoon distilled white vinegar
• 1 1 / 4 Teaspoons milk
• 2 Tablespoons hot water
• 1 Cup all-purpose flour
• 1 / 2 Teaspoon salt
• 3 / 4 Teaspoon cornstarch
• 1 Cup California raisins
• 3 / 4 Cup milk chocolate chips
• 3 / 4 Cup chopped walnuts
• 3 eggs
• 2 / 3 Cup granulated white sugar
• 1 / 4 Teaspoon ground cinnamon
• 1 Teaspoon vanilla extract
• 1 / 3 Cup melted butter
• 1 Cup dark corn syrup