Really Good Carrot Cake! - Eatin' mess

Ingredients

• 2 cups plain flour
• 2 tsp baking powder
• ½ tsp salt
• 2 tsp ground cinnamon
• 3 eggs
• 1¾ cups sugar
• ¾ cup vegetable oil
• ¾ cup buttermilk
• 1 tsp vanilla extract
• 2 cups grated carrot
• ½ cup crushed, drained pineapple
• ⅓ cup flaked coconut
• ½ cup chopped, toasted pecans
• ½ cup sugar
• ¾ tsp baking soda
• ¼ buttermilk
• ¼ butter
• ½ tsp corn syrup
• ¾ cup softened butter
• 1½ cups softened cream cheese
• 3 cups sifted icing sugar