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Giant Cake-Filled Kit Kat Bar

Break Off a Piece of This Giant Cake-Filled Kit Kat Bar!

Kit Kat bars seem to come in amazing flavors everywhere but the US. Kit Kat Japan recently announced a bite-size Kit Kat bar stuffed with chocolate cake. When we heard about this, we knew we not only had to make it, but we had to supersize it! This dessert has it all: rich chocolate cake, crunchy wafers, and creamy chocolate. Break us off a piece of that!

Dying for more Kit Kats? Check out our giant green tea Kit Kat bar and our cookie-dough-stuffed Kit Kats.

Giant Cake-Filled Kit Kat Bar

From Yasmin Alishav, POPSUGAR Food

Giant Cake-Filled Kit Kat Bar


  1. For the cake:
  2. Nonstick spray
  3. 1/2 cup unsweetened cocoa powder + 1 tablespoon for dusting
  4. 3/4 cup boiling water
  5. 6 tablespoons whole milk
  6. 1 teaspoon vanilla extract
  7. 1 1/2 sticks of unsalted butter, softened
  8. 3/4 cup light brown sugar
  9. 3/4 cup granulated sugar
  10. 3 eggs
  11. 1 teaspoon baking soda
  12. 1/2 teaspoon salt
  13. 1 1/2 cups all-purpose flour
  1. For the Kit Kat bar:
  2. 3 cups semisweet chocolate chips
  3. 1/2 cup heavy cream
  4. 1 1/2 cups white chocolate chips
  5. 1/2 cup coconut oil
  6. 24 wafer sandwich cookies with vanilla filling


  1. For the cake: Preheat the oven to 350°F. Spray a 9 1/4" x 5 1/4" x 2 3/4" loaf pan with oil and dust with 1 tablespoon of cocoa powder.
  2. In a small bowl, whisk the boiling water with the cocoa until mixed and smooth. Add milk and vanilla extract.
  3. In a large bowl, beat the butter, brown sugar, and white sugar together until fluffy, about 4 minutes. Add one egg at a time, mixing thoroughly between each addition. On the lowest setting, add the baking soda, salt, and one third of the flour mixture. Mix until well incorporated. Add half of the cocoa mixture. Alternate adding the two mixtures, ending on the flour mixture.
  4. Pour the batter into the loaf pan and bake for 40-45 minutes or until a toothpick comes out clean when testing it.
  5. Allow to cool and cut off the rounded top off of the loaf using a bread knife to create a flat surface.
  6. For the Kit Kat: Line a 9 1/4" x 5 1/4" x 2 3/4" loaf pan with plastic wrap. Melt 1 1/2 cups of semisweet chocolate chips and pour into the bottom of the pan. Place in freezer for 5 minutes to set.
  7. To make white chocolate ganache, heat up heavy cream in the microwave in 30-second intervals until simmering. Pour over white chocolate chips. Let sit for 2 minutes to melt, then whisk together.
  8. Starting with the white chocolate ganache, alternate layers of ganache and cookies, ending with ganache. Place in freezer for 10 minutes to set.
  9. Pull the cookie base out of the pan and place on a sheet pan, milk chocolate side down. Flip the cake upside down and place on top of the chocolate cookie base.
  10. Microwave remaining chocolate chips and coconut oil in 15-second increments until chocolate is melted and the mixture is smooth. Stir in between each session. Pour the melted chocolate as evenly as possible over the top of the cake, making sure it covers the sides too. Place in freezer for 10 minutes, or until set, and enjoy!
Image Source: POPSUGAR Photography / Kyle Hartman
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