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5 from 50 votes

Oatmeal Cake with Vanilla Sauce

Old-fashioned oatmeal cake like mom used to make but taken up 10 notches with the tastiest, rich homemade vanilla sauce.
Prep Time15 minutes
Cook Time45 minutes
Total Time1 hour
Course: Dessert
Cuisine: American
Servings: 12 servings

Ingredients

Oatmeal Cake

  • 1 cup old fashioned rolled oats
  • 1 ¼ cups very hot water
  • 1 ½ cups flour
  • 1 teaspoon baking soda
  • 1 teaspoon baking powder
  • ½ teaspoon salt
  • 1 teaspoon cinnamon
  • cup finely chopped pecans or walnuts optional
  • ½ cup butter at room temperature
  • 1 cup brown sugar
  • 1 cup sugar
  • 2 large eggs
  • 1 teaspoon vanilla

Vanilla Sauce

  • ½ cup butter
  • 1 cup sugar
  • ½ cup heavy whipping cream
  • 2 teaspoons vanilla
  • ¼ teaspoon salt

Instructions

  • Preheat oven to 350 degrees and grease a 9x13 inch baking pan.
  • In a medium bowl combine oats and hot water, stir, let soak while you prepare next steps.
  • In a medium bowl whisk together flour, baking soda, baking powder, salt, cinnamon, and nuts (if including).
  • In a large bowl cream together the butter, brown sugar, and sugar for 2-3 minutes. Mix in the eggs and vanilla.
  • Mix in oatmeal, then mix in dry ingredients just until combined.
  • Spread mixture evenly in prepared pan. Bake for 35 minutes until set and a toothpick inserted in the middle comes out with no wet batter. Allow cake to cool for 15-20 minutes, meanwhile prepare the vanilla sauce.
  • In a thick-bottom medium sauce pan (do not use stainless steel) over medium heat, combine butter, sugar, heavy cream, vanilla, and salt. Stir continuously for about 5 minutes until sauce is thick enough to coat the back of a spoon.
  • Cut cake into squares, drizzle vanilla sauce over the top, and serve.

Video

Notes

  • Be sure to use old fashioned rolled oats in this recipe. If you use steel cut, the cake will not work. Steel cut oats take a long time to cook and the oats will taste nutty and seedy in the cake. You need the whole grains and moistness of the soaked oatmeal. 
  • This oatmeal cake will keep in the fridge, covered, for up to 5 days. 
  • Other ways to top this oatmeal cake include a cream cheese frosting, a buttercream frosting, or a simple vanilla glaze. 
  • You can freeze this oatmeal cake for up to 3 months, though it won't thaw and be nearly as moist, it will still taste delicious! 

Nutrition

Calories: 363kcal | Carbohydrates: 70g | Protein: 5g | Fat: 8g | Saturated Fat: 3g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 44mg | Sodium: 314mg | Potassium: 131mg | Fiber: 1g | Sugar: 53g | Vitamin A: 225IU | Vitamin C: 1mg | Calcium: 80mg | Iron: 1mg
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