Hot Fudge Sundae Cake

This week’s recipe is brought to you by my in-laws. A long while ago, my mother-in-law compiled a recipe book for a family reunion. Her family is from Eastern Idaho where the food is simple, tasty, and perfect for farm life.

I don’t know who on my in-law’s side of the family came up with this perfect dessert, but it quickly became a favorite in our house. It is quick and easy and a huge crowd-pleaser.

Hot Fudge Sundae Cake

Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Course Dessert
Cuisine American
Servings 8 people
Calories 284 kcal


  • 1 cup all-purpose flour
  • ¾ cup granulated sugar
  • 2 tsp baking powder
  • 2 Tbsp cocoa powder
  • ¼ tsp salt
  • ½ cup milk
  • 2 Tbsp vegetable oil
  • 1 tsp vanilla extract


  • 1 cup packed brown sugar
  • ¼ cup cocoa powder
  • 2 cups hottest tap water


  • In a bowl combine the flour, granulated sugar, 2 Tbsp cocoa powder, baking powder and salt; stir until evenly combined. Add in the vegetable oil, vanilla, and milk, whisk to combine. Pour into an UNGREASED 9×13 inch pan and spread evenly.
  • In another bowl combine the brown sugar and the ¼ cup cocoa powder, stir until evenly combined. Sprinkle over the batter in the pan.
  • Pour the hot water over the top in the pan and place in a preheated 350°F oven. Bake for 40 minutes. The water will have combined with the brown sugar/cocoa powder mixture and seaped to the bottom to create hot fudge and forcing the batter to move to the top which when baked with create the cake. Serve immediately with your favorite ice cream.


Tasty Additions: nuts, peppermint bits, toffee bits, peanut butter chips


Serving: 1servingCalories: 284kcalCarbohydrates: 61gProtein: 3gFat: 5gSaturated Fat: 3gCholesterol: 2mgSodium: 197mgPotassium: 133mgFiber: 2gSugar: 46gVitamin A: 25IUCalcium: 108mgIron: 2mg
Keyword cake, chocolate, hot fudge
Tried this recipe?Let us know how it was!

Does your family have a recipe that everyone loves? Is your family like mine and has its very own family cookbook? Hope y’all have an amazing week!

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