FOR THE CAKE:
- 1 1/2 cups old fashioned rolled oats
- 1 1/4 cups boiling water
- 1 1/2 cups all-purpose flour
- 1 1/2 teaspoons ground cinnamon
- 1 teaspoon baking soda
- 1/2 teaspoon fine salt
- 1/4 teaspoon ground nutmeg
- 3/4 cup granulated sugar
- 3/4 cup packed light brown sugar
- 1/2 cup unsalted butter, softened
- 3 large eggs
- 1 teaspoon vanilla extract
FOR THE TOPPING:
- 6 tablespoons unsalted butter, melted
- 2/3 cup packed light brown sugar
- 1/4 cup milk
- 1 teaspoon vanilla extract
- 1 1/2 cups sweetened shredded coconut
- 1/2 cup chopped nuts, pecans or walnuts (optional)
TO MAKE THE CAKE:
- Preheat oven to 350°F and grease a 9×13 cake pan with nonstick spray, set aside.
- In a bowl combine oats with boiling water. Let soak for 15 minutes.
- In another bowl whisk together flour, cinnamon, baking soda, salt, and nutmeg.
- In a large mixing bowl beat granulated sugar, brown sugar, and butter on a medium speed until light and fluffy, about 4 to 5 minutes, scrape the sides and bottom of the bowl as needed.
- Beat in eggs, one at a time, until well incorporated. Beat in the vanilla.
- Gradually add the dry ingredients until well combined. Add in oat mixture, beating until well combined.
- Spread evenly into the prepared baking pan and bake for 25 to 30 minutes, a toothpick inserted should come out with a few moist, not wet crumbs.
TO MAKE THE TOPPING:
- Remove cake from the oven and change the oven’s setting to broil.
- In a medium bowl, whisk butter, light brown sugar, milk, and vanilla. Stir in coconut and chopped nuts.
- Spread mixture over warm cake.
- Place under the broiler until the edges of coconut start to brown, about 1 to 2 minutes.
- Cool cake for a minimum of 30 minutes before serving.