Chocolate Thunder Cake

READY IN: 1hr 13mins
Recipe by foxysnana

This is chocolate paradise! I am a severe chocoholic and this fills the bill for ooey, gooey, and oh so good. This is from a friend that I used to go to church with. I helped a boy make this for a bake-off at church and he won first prize. My sister donated a certificate for this cake to a charity auction and the woman that bought it has called 4 times since then to have me to make this for her.

Top Review by tlbrod

Oh my gosh this cake is amazing. I came across it during a search for an old fashioned chocolate cake for my son...I made it for a neighbor's party & it was a HUGE hit. Especially for all the Chocolate Lover's. I was then asked by one of the party goer's to make it for her birthday.

I did use a bigger pan (11x15) the second time. It worked much better. You just need a pan bigger than a 13x9. With the 13x9 there isn't enough room for all the topping. I used a Double Fudge cake mix both times & it was DELICIOUS. Very rich. I put the sweetened condensed milk on when the cake was just a tad bit warm. It runs right into the holes & down the sides. The fudge too!! YUMMY.

I have sense made this cake a third time. But this time I made it for a summer dessert. I used a butter cake mix with the sweetened condensed milk & then sliced fresh strawberries. Again, it was a HIT at the party. It was so refreshing but yet rich & yummy. I was asked if it was Tres Leche. Similarly but no. I didn't use any fruit topping. I just had cake, milk, strawberries, whipped topping & then strawberries to garnish the top. I think any berries would be good.

ENJOY....Definitely one of my favorite cakes.

Ingredients Nutrition

  • 1 (18 ounce) package swiss chocolate cake mix
  • 1 13 cups water (or as called for by your cake mix)
  • 12 cup vegetable oil (or as called for by your cake mix)
  • 3 large eggs (or as called for by your cake mix)
  • 1 (14 ounce) can sweetened condensed milk
  • 1 (12 ounce) jar chocolate fudge topping
  • 1 (16 ounce) container Cool Whip, thawed
  • 2 Heath candy bars, crushed


  1. Bake cake in a 13x9 pan according to directions on box.
  2. Let cool 25-30 minutes in pan.
  3. Poke holes in cake with wooden spoon handle.
  4. Pour on sweetened condensed milk.
  5. Spread evenly and wait 5 minutes.
  6. Pour on fudge topping (I melt it a few seconds in microwave to pour evenly).
  7. Spread evenly and wait 5 minutes.
  8. Spread Cool Whip over top.
  9. Sprinkle crushed candy bars on top.

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