Step 1

Preheat the oven to 350°F. Coat a 9x13-inch baking dish with nonstick cooking spray.

Step 2

In a medium bowl, combine the hot milk and the oatmeal; allow to soak while you prepare the remaining ingredients.

Step 3

In another medium bowl, whisk together the flour, cinnamon, baking soda and salt.

Step 4

With an electric mixer, cream together the butter and both sugars in a large bowl. Beat in the eggs and vanilla. Add half of the flour to the creamed butter mixture, followed by the soaked oatmeal (including any liquid), then the remaining flour, mixing between additions. Pour into the prepared baking dish and bake until set, 35-40 minutes.

Step 5

For the topping, put the butter, brown sugar, and milk in a saucepan. Bring to a boil, while stirring. Once sugar is dissolved, remove from heat. Stir in the coconut and pecans. Pour over the cake and spread evenly. Let stand for about 10 minutes, slice, and serve!