Rum cake cupcakes

Ingredients

For cupcakes:

• 2 cups and 2 teaspoons cake flour
• 1 1/2 teaspoons salt
• 1 1/2 cup white sugar
• 3 level teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 cup cold butter, diced into tiny pieces
• 2 tablespoons vegetable oil
• 1 small package vanilla instant pudding mix or 1 cup custard powder
• 1/2 cup lowfat milk
• 3 large eggs
• 1/2 cup dark rum
• 1/2 cup vegetable oil
• 1 tablespoon pure vanilla extract
• 3/4 cup diced walnuts or pecans

For cream cheese rum frosting:

• 150 g (about 5-6 ounces) cream cheese, softened
• 3/4 of a shot glass dark rum
• 1/2 of a shot glass sugar syrup
• 1/2 cup powdered sugar or icing sugar
• 1/2 teaspoon lime juice
• Lime zest, optional