Macadamia Pineapple Dream Cake

INGREDIENTS

• 1 cup all-purpose flour
• 1 1/4 teaspoons baking powder
• 1/4 teaspoon salt
• 1/2 cup butter, softened
• 1 cup white sugar
• 3 eggs
• 1 teaspoon vanilla extract
• 1/4 cup milk
• 3/4 cup chopped macadamia nuts
•  
• 1 (8 ounce) can crushed pineapple in heavy syrup
• 1 tablespoon cornstarch