Heath Bar Poke Cake

This Heath Bar Poke Cake is rich, chocolatey, and downright irresistible. Moist Devil’s Food cake gets soaked with sweetened condensed milk and caramel sauce, then topped with Cool Whip and crunchy Heath Bar bits. Every bite is a mix of gooey, creamy, and crunchy textures that make it impossible to stop at one slice.

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Using a boxed cake mix makes this Heath Bar Poke Cake super quick and easy, while the “poke cake” method ensures every bite is filled with sweet flavor. It’s the kind of dessert that’s always a hit at potlucks, birthdays, or holiday gatherings.

The best part? This cake can be made ahead and refrigerated, making it stress-free for entertaining. Just keep extra Heath Bar bits handy for sprinkling over leftovers to refresh that crunchy topping. This is one of those no-fuss recipes that delivers big on flavor and presentation.

Ingredients

• Devil’s Food cake mix batter – Prepared according to the package instructions.
• Sweetened condensed milk – Not evaporated milk.
• Caramel ice cream topping – Any caramel sauce will work.
• Cool Whip – Or any other non-dairy whipped topping.
• Heath Bar baking bits – Or, you can crush 4 full-size Heath Bars with a rolling pin or mallet.

How To Make Heath Bar Poke Cake

Scroll down for the full recipe card with exact measurements and printable instructions.

Preheat your oven to 350°F. Lightly coat a 9×13-inch ceramic baking dish with nonstick cooking spray. I like using stoneware because it holds heat evenly and makes serving right from the pan easy.

Prepare the Devil’s Food cake batter according to the package instructions, then pour it into the prepared dish. Bake as directed for a 9×13-inch cake, about 30–35 minutes, until a toothpick inserted in the center comes out clean.

While the cake is still hot, grab the handle end of a wooden spoon or use a wide-ended chopstick to poke holes all over the surface, spacing them about ½ inch apart. The wider holes help the sweet milk and caramel soak deep into the cake.

Slowly pour the sweetened condensed milk evenly over the cake, letting it seep into the holes. Repeat with the caramel sauce, spreading it edge to edge with a long-handled spreading spatula so every bite gets covered. Let the cake cool completely at room temperature for at least 1 hour so it can soak up all that flavor.

Once cooled, spread the Cool Whip evenly across the cake with an offset spatula—it glides smoothly and gives you that bakery-style finish. Sprinkle generously with Heath Bar bits, using half or more depending on how much crunch you want. If you’re serving later, keep some extra Heath Bar bits to refresh the topping before serving.

Slice into squares and serve chilled or at room temperature.

Chef Jenn’s Tips

• Any chocolate cake mix works here; Devil’s Food is my favorite for its deep flavor.
• Don’t skip the cooling step; it allows the caramel and milk to fully soak in.
• For neat slices, chill the cake for at least 30 minutes before cutting.
• Refresh leftovers with a sprinkle of extra Heath Bar bits to keep the crunch.

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Serving Suggestions

This cake is rich enough to serve as the centerpiece of a dessert spread. Pair it with a scoop of vanilla ice cream or a cup of hot coffee for the perfect finishing touch. It’s also a great make-ahead dessert for potlucks, BBQs, or game-day gatherings.

Storage

Cover tightly with plastic wrap or store in an airtight container in the refrigerator for up to 5 days. The Heath Bar bits soften as they sit, so keep extra on hand to sprinkle over slices before serving.