German Chocolate Sheet Cake

1. Preheat oven to 350. Grease a jelly roll pan or cookie sheet (I use a 15×11-inch rimmed cookie sheet) with edges. 2. Stir together sugar, flour, baking soda, and salt. 3. Melt butter, cocoa, and water in a saucepan. Bring to boil. 4. Once at a boil, pour over the dry ingredients, and stir to combine. 5. Add the buttermilk, eggs, and vanilla. Stir to combine. 6. Bake for 15-20 minutes. 7. While the cake is baking prepare the topping. 8. In a medium bowl, stir together butter, brown sugar, cream, pecans, and shredded coconut; set aside. 9. When the cake is done, turn oven to broil. 10. Gently spoon topping evenly over cake. 11. Return cake to oven, and broil for 3-4 minutes, or until hot, bubbly, and very lightly golden brown.