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Grandma's Gooey Cake

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  • 1 Box German Chocolate Cake Mix
  • 3 Large Eggs
  • 1/3 Cup Vegetable Oil
  • 1 Cup Water
  • 1 Can Eagle Brand Sweetened Condensed Milk
  • 1 Jar Butterscotch or Caramel Topping
  • 1 Cup Cool Whip
  • 3, Frozen and Crushed Heath Bars

Grandma’s Gooey Cake

A rich, gooey cake that's so easy and fun to make!

1 hour

Serves: 12-16


A delicious, German chocolate poke-cake that can please a crowd and is made in advance for easy entertaining.

Grandma's Gooey Cake Ingredients

Grandma’s Gooey Cake is a vintage poke cake recipe that’s an ooey-gooey treat that everyone will love! And using a box cake mix makes it easy, too. If you’ve got little ones around that want to get started with cake baking (and decorating) this would be a great one to begin with. Plus, you have all the extra fun of poking the cake!

The recipe is pretty straight forward, just bake the cake from the boxed cake mix and then poke it and add toppings. Grandma notes that you can use either butterscotch or caramel topping and I would really recommend sticking with the caramel. The whole cake is very sweet and, for me, I think the butterscotch might be too much. We opted for salted caramel topping which I think was wonderful. Even then we did pretty small slices.

For the toppings, you can use Cool Whip to make it super easy, but I opted to whip my own fresh whipped cream. You need about a cup so I just whipped about 3/4 cup cream until soft peaks form and then add about a tablespoon of sugar and a teaspoon of vanilla. Since the whipped cream isn’t getting baked, this is a good time to use that vanilla bean paste and not extract – if you have it. For the Heath Bars, we found the Heath bits that work just as good and saves the steps of freezing and crushing the bars. One 8 ounce bag was definitely enough.

I hope you try this Gooey Cake and if you do, please let me know in the comments below or share a picture with me on Instagram (@bdhbakes).


Grandma's Gooey Cake Recipe Card Front Grandma's Gooey Cake Recipe Card Back


  • Preheat oven to 350º 
  • Make Cake Mix 

    Combine the contents of the cake mix box, 3 eggs, 1/3 Cup of Vegetable Oil and 1 Cup of water in a big bowl. Mix well by hand with a rubber spatula until the dry ingredients are well incorporated.

    Grandma's Gooey Cake Mix Ingredients
    Grandma's Gooey Cake Mix Ready
  • Prep Pan and Pour Batter 

    Prep a 13x9 baking tray with cooking spray (with flour if you have it) and then pour in the cake batter.

    Grandma's Gooey Cake Pour Batter
    Grandma's Gooey Cake Prep Tin
  • Bake the Cake 

    Bake the cake for 35 to 40 minutes or until a toothpick inserted into the center comes out clean. Allow the cake to cool slightly, about 5 minutes.

    Grandma's Gooey Cake Baked
  • Poke and Pour! 

    After the cake has cooled slightly, poke holes around the top. Immediately pour the condensed milk evenly over the top. Follow the milk with the butterscotch or caramel topping.

    Grandma's Gooey Cake Poke It
    Grandma's Gooey Cake Pour Milk
    Grandma's Gooey Cake Pour Caramel
  • Allow to cool 

    Cover the cake and place in the fridge to allow to cool completely. And hour or two at minimum.

  • Top the cake 

    Top the cake with the Cool Whip (or make your own!) and finish it off with the crushed Heath bars. Refrigerate overnight or until ready to serve.

    Grandma's Gooey Cake Whip Cream
    Grandma's Gooey Cake Whipped Cream
    Grandma's Gooey Cake Finished



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