Mars Bar Cake Recipe

Indulge in this heavenly Mars Bar Cake, a rich and irresistible dessert recipe inspired by the Toronto Star Life page (July 17, 2006). This recipe features layers of moist chocolate cake infused with melted Mars bars, topped with a luscious Mars bar buttercream frosting and finished with decorative Mars bar slices. Get ready to impress your friends and family with this unforgettable treat!

Prep Time 25 mins
Cook Time 75 mins
Calories 300.2 kcal
Protein 10g
Rating Be the first
Mars Bar Cake 46

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Forktionary editorial kitchen team

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Mars Bar Cake

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How to Make Mars Bar Cake

  1. Preheat oven to 325°F (160°C). Grease and flour a 10-inch tube pan with a removable bottom.
  2. In a small saucepan over low heat, melt ½ cup of the Mars bar pieces, stirring frequently until smooth. Set aside to cool slightly.
  3. In a medium bowl, whisk together flour, baking powder, and baking soda.
  4. In a large bowl, cream together the softened butter and sugar using an electric mixer on medium-low speed, then increase to medium speed and beat until light and fluffy (about 5 minutes).
  5. Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next.
  6. Beat in the vanilla extract and the melted Mars bar mixture until well combined.
  7. Gradually add one-third of the dry ingredients to the wet ingredients, mixing until just combined.
  8. Add half of the buttermilk, mix until incorporated.
  9. Add the remaining dry ingredients, mix until just combined.
  10. Add the remaining buttermilk and mix until the batter is smooth.
  11. Pour the batter into the prepared pan and bake for 55-60 minutes, or until a wooden skewer inserted into the center comes out clean.
  12. Let the cake cool in the pan for 15 minutes before inverting it onto a wire rack to cool completely.
  13. While the cake is cooling, prepare the icing: In a small saucepan over low heat, melt ½ cup of Mars bar pieces and ¼ cup butter, stirring frequently until smooth.
  14. Remove from heat and let cool for 5 minutes.
  15. Add powdered sugar, milk, and vanilla extract. Whisk vigorously until smooth and creamy. Add more milk if needed to reach desired consistency.
  16. Once the cake is completely cool, frost it generously with the Mars bar icing, allowing some to drip down the sides.
  17. Decorate the top with the remaining Mars bar slices.

Nutrition Information (Approximate per serving)

Sodium

4 g

Sugar

92g

Fat

37g

Carbs

12g

Frequently Asked Questions

How long does it take to make Mars Bar Cake?

Mars Bar Cake takes about 100 minutes from start to finish — roughly 25 minutes to prepare and 75 minutes to cook.

How many calories are in Mars Bar Cake?

Mars Bar Cake has approximately 300.2 calories per serving, with about 10 g protein, 12 g carbohydrates and 22 g fat.

What ingredients do I need for Mars Bar Cake?

The key ingredients for Mars Bar Cake are Mars Bars, Unsalted Butter, All Purpose Flour, Baking Powder, Baking Soda, Eggs. See the full list with measurements above.

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