Patricia Polacco's Thunder Cake

READY IN: 1hr 5mins
Recipe by Dwynnie

This is the Thunder Cake recipe from Patricia Polacco's "Thunder Cake" picture book. It is a wonderful chocolate cake with a hint of fruit flavor from the secret ingredient! It is perfect frosted with Chocolate Buttercream Icing and topped with fresh sliced strawberries! (The strawberries and tomato match wonderfully and I promise that no one will know it is tomato, they will only ask what you did to make it so wonderful!)

Top Review by lynnfisi

This was a really great recipe. I made it for my tutoring student as an end of the year surprise. He had just read the book in class and he got really excited about it. I was skeptical about the tomatoes but it went really well together!

Ingredients Nutrition


  1. Preheat oven to 350°F.
  2. Grease and flour two 8 1/2 inch cake pans.
  3. Cream together the shortening and sugar.
  4. Beat in the vanilla and egg yolks.
  5. Mix in the cold water and pureed tomatoes.
  6. Beat the egg whites until they are stiff and fold into egg/tomato mixture.
  7. Sift the cake flour, cocoa, baking soda, and salt.
  8. Mix dry mixture into wet.
  9. Pour batter evenly into cake pans.
  10. Bake for 35 to 40 minutes.
  11. Let cakes cool on wire racks before frosting with chocolate buttercream icing.
  12. Optional: Top with fresh strawberries.

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