Name: Cake Mix Toffee Bars
Prep time: 10 min
Cook time: PT-485396H49M56S
Total time: PT-485396H49M56S
Cuisine: American
Ingredients: 1 box yellow cake mix; 1 large egg; 6 tablespoons butter, melted; 2 cups chocolate toffee bits (like Heath bits); 1 can (14 ounces) sweetened condensed milk

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Cake Mix Toffee Bars are rich, chewy dessert bars that come together effortlessly with the help of a boxed cake mix. I get a buttery, soft base topped with sweetened condensed milk and crunchy toffee bits—every bite delivers that perfect mix of gooey and crisp.

Why You’ll Love This Recipe

I love how quick and foolproof this recipe is. With just five ingredients and minimal prep, I can bake up a batch of indulgent bars that taste like they came straight from a bakery. The texture is unbeatable—the soft cake bottom, sweet milky layer, and toffee crunch make these bars a go-to treat for potlucks, parties, or a cozy night in.

Ingredients

(Here's a tip: Check out the full list of ingredients and measurements in the recipe card below.)

1 box yellow cake mix
1 large egg
6 tablespoons butter, melted
2 cups chocolate toffee bits (like Heath bits)
1 can (14 ounces) sweetened condensed milk

Directions

I preheat the oven to 350°F (175°C) and lightly grease a 9x13-inch baking dish.
In a mixing bowl, I combine the cake mix, melted butter, and egg until a soft dough forms.
I press the dough evenly into the prepared baking dish to form the crust.
I sprinkle the toffee bits evenly across the crust.
Then, I pour the sweetened condensed milk over the top, spreading it gently to coat.
I bake for 25 to 30 minutes, until the edges turn golden brown and the top is bubbly.
After cooling completely, I cut the bars into squares and serve.

Servings and Timing

This recipe makes about 24 bars. It takes around 10 minutes to prepare and 25 to 30 minutes to bake, so I can have everything ready to enjoy in under 45 minutes.

Variations

I sometimes use chocolate or butter pecan cake mix for a different twist.
Adding chopped pecans or walnuts gives a nice crunchy contrast.
I like to mix in some mini chocolate chips or white chocolate chips for variety.
After baking, I occasionally drizzle melted caramel over the top for a richer flavor.
For a festive version, I sprinkle colored candy bits over the condensed milk before baking.

Storage/Reheating

I store the bars in an airtight container at room temperature for up to 5 days. For longer storage, I refrigerate them for up to a week. If I want to keep them for a month or more, I wrap them individually and freeze them. To reheat, I microwave one bar for about 10–15 seconds, just until warm.

FAQs

Can I use a different flavor of cake mix?

Yes, I’ve tried chocolate, spice, and butter pecan cake mixes and they all work great. The base flavor really influences the final taste.

Do I need to use toffee bits with chocolate?

Not necessarily. If I prefer just plain toffee bits or want to use chopped toffee candy bars, those work well too.

Can I make this recipe gluten-free?

I use a gluten-free yellow cake mix and double-check my other ingredients to make sure they’re gluten-free. The result is just as tasty.

How do I know when the bars are done?

I look for the edges to be golden and the center to be set but still slightly soft. It firms up more as it cools.

Can I make these in advance?

Absolutely. I usually bake a batch the night before an event. They keep their texture and flavor well overnight, and even improve slightly as they set.

Conclusion

These Cake Mix Toffee Bars are the kind of treat I rely on when I want something easy, quick, and delicious. They look impressive, taste amazing, and don’t require a lot of effort. Whether I’m sharing them with friends or keeping them all to myself, they never disappoint.

Cake Mix Toffee Bars

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Author: Sue
Prep Time: 10 minutes
Cook Time: 25–30 minutes
Total Time: 40–45 minutes
Yield: 24 bars
Category: Dessert
Method: Baking
Cuisine: American
Diet: Vegetarian

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Description

Cake Mix Toffee Bars are rich, chewy dessert bars made with a buttery cake mix base, sweetened condensed milk, and crunchy toffee bits for a delightful gooey and crisp texture.

Ingredients

1 box yellow cake mix
1 large egg
6 tablespoons butter, melted
2 cups chocolate toffee bits (like Heath bits)
1 can (14 ounces) sweetened condensed milk

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Instructions

Preheat the oven to 350°F (175°C) and lightly grease a 9x13-inch baking dish.
In a mixing bowl, combine the cake mix, melted butter, and egg until a soft dough forms.
Press the dough evenly into the prepared baking dish to form the crust.
Sprinkle the toffee bits evenly across the crust.
Pour the sweetened condensed milk over the top, spreading it gently to coat.
Bake for 25 to 30 minutes, until the edges turn golden brown and the top is bubbly.
Allow to cool completely, then cut into squares and serve.