Surprise Rainbow Pi Cake Recipe

Celebrate Pi Day with this show-stopping Surprise Rainbow Pi Cake! This vibrant lemon pound cake hides a stunning multicolor Pi symbol inside, guaranteed to impress foodies and math enthusiasts alike. A fun and delicious treat perfect for parties or a special occasion. Get ready to wow your guests with this colorful masterpiece!

Prep Time 60 mins
Cook Time 270 mins
Calories 13029.1 kcal
Protein 269g
Rating Be the first
Surprise Rainbow Pi Cake 50

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Forktionary editorial kitchen team

The Forktionary Kitchen Team

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

Ingredients for Surprise Rainbow Pi Cake

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How to Make Surprise Rainbow Pi Cake

  1. Preheat oven to 350°F (175°C). Grease and flour a 9x13 inch baking pan.
  2. In a large bowl, cream together the butter and sugar until light and fluffy.
  3. Beat in the eggs one at a time, then stir in the lemon zest and vanilla extract.
  4. In a separate bowl, whisk together the flour, baking powder, and salt.
  5. Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
  6. Divide the batter into five bowls. Add gel food coloring to each bowl (red, orange, yellow, green, blue/purple).
  7. Create the Pi symbol in the prepared pan by carefully spooning the colored batters into the desired shape to form a Pi symbol. Fill any remaining space with the batter.
  8. Bake for 50-60 minutes, or until a wooden skewer inserted into the center comes out clean.
  9. Let the cake cool in the pan for 10 minutes before inverting it onto a wire rack to cool completely.
  10. Dust with powdered sugar or drizzle with a lemon glaze before serving.

Nutrition Information (Approximate per serving)

Sodium

389 g

Sugar

5273g

Fat

1372g

Carbs

616g

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Frequently Asked Questions

How long does it take to make Surprise Rainbow Pi Cake?

Surprise Rainbow Pi Cake takes about 330 minutes from start to finish — roughly 60 minutes to prepare and 270 minutes to cook.

How many calories are in Surprise Rainbow Pi Cake?

Surprise Rainbow Pi Cake has approximately 13029.1 calories per serving, with about 269 g protein, 616 g carbohydrates and 889 g fat.

What ingredients do I need for Surprise Rainbow Pi Cake?

The key ingredients for Surprise Rainbow Pi Cake are Nonstick Cooking Spray, White Cake Mix, Food Coloring, Unsalted Butter, Sugar, Eggs. See the full list with measurements above.

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