HOW TO MAKE IT :
- Preheat the oven to 350°F. Spritz a 13 x 9 inch baking pan with cooking spray. Set aside.
- Mix together the oats and hot water. Set aside for 15 minutes to allow the oats to soften and cool.
- Meanwhile, sift together all purpose flour, baking soda, ground cinnamon, salt and nutmeg.
- Using an electric mixer, cream together butter, evaporated milk, brown sugar, granulated sugar and vanilla.
- Add the eggs one at a time beating well after each addition.
- Add the cooled oats and dry ingredients to the creamed butter. Continue to beat with a mixer just until fully combined. Stop and scrape the sides of the bowl as needed.
- Spread into the prepared pan. Bake for 35-40 minutes or until a toothpick inserted into the center comes back with moist crumbs.
- To make the Frosting: Melt butter in a medium size microwave safe bowl.
- Add the remaining topping ingredients mixing until fully combined.
- Spread the topping evenly onto the cake immediately after it’s removed from the oven. Increase the oven setting to broil moving the rack to the upper third of the oven.
- Broil for 3-5 minutes until the topping has melted and is bubbly. Do not walk away the topping can burn easily if left unattended.
- Cool to warm or serve at room temperature.
