Old Fashioned Oatmeal Cake with Coconut Pecan Frosting
A moist spiced oatmeal sheet cake topped with a warm coconut and pecan frosting.
Prep Time 45 minutes mins
Cook Time 35 minutes mins
Total Time 1 hour hr 20 minutes mins
Course Dessert
Cuisine American
Servings 12 squares
Calories 465 kcal
9x13 inch baking dish
Mixing bowls
Saucepan
Electric mixer
Main Ingredients
- 1 cup quick oats
- ½ cup unsalted butter room temperature
- 1 ¼ cup boiling water
- 1 ⅓ cup all purpose flour
- 1 tsp baking soda
- ½ tsp kosher salt
- ¼ tsp freshly grated nutmeg
- 1 tsp apple pie spice
- 1 tsp ground cinnamon
- 1 cup granulated sugar
- 1 cup dark brown sugar packed
- 2 large eggs room temperature, lightly beaten
- 6 tbsp unsalted butter for the frosting
- ¼ cup heavy cream
- ½ cup granulated sugar for the frosting
- 1 pinch kosher salt for the frosting
- ½ cup sweetened shredded coconut toasted
- 1 cup chopped pecans toasted
- 1 tsp pure vanilla extract
- 1 tbsp fresh lemon juice from 1/2 lemon
Cooking
Soak the oats. Pour the boiling water over the oats and let them stand 10 minutes. Heat the oven to 350 degrees F and grease a 9x13 inch dish.
Cream the sugars. Beat the butter with both sugars until fluffy, then beat in the eggs one at a time.
Mix the batter. Whisk the dry ingredients, then fold them into the creamed mixture in two additions with the soaked oats.
Bake until golden. Spread in the dish and bake 30 to 35 minutes until a toothpick comes out clean. Cool 30 minutes.
Boil the topping. Simmer the butter, cream, sugar, and salt for 2 minutes, then stir in coconut, pecans, vanilla, and lemon juice.
Frost and cut. Spread the warm topping over the cooled cake and cut into 12 squares once it sets.
Substitutions: Use walnuts for pecans and add 1/2 cup raisins to the batter if you like.
Tips: Toast the coconut and pecans and cool the cake before frosting.
Storage: Keep covered at room temperature up to 2 days or refrigerate up to 4 days.
Keyword Coconut Pecan Frosting, Oatmeal Cake, old fashioned oatmeal cake, Sheet Cake, Spiced Oatmeal Cake