Grandma's Carrot Cake

Step 1
Preheat oven to 350 degrees F (175 degrees C). Grease a 9×13 inch pan. Sift together the flour, baking soda and cinnamon. Set aside.

Step 2
In a large bowl, combine the sugar and oil until blended. Beat in the eggs one at a time, then stir in the vanilla. Stir in the flour mixture just until incorporated. Fold in the pineapple, carrots, coconut and walnuts. Pour batter into prepared pan.

Step 3
Bake in the preheated oven for 45 minutes, or until a toothpick inserted into the center of the cake comes out clean. While still warm, poke holes in the cake with a fork.

Step 4
For the glaze: In a saucepan, combine butter, sugar, buttermilk and vanilla. Bring mixture to a boil over medium heat, then reduce heat and cook for 5 minutes. Pour glaze over warm cake, then allow to cool completely.