These Cake Mix Toffee Bars are an easy and delicious treat made with just a few simple ingredients. They have a chewy, buttery base and a rich, sweet toffee topping that melts in your mouth. The best part? No mixer is required! This is a perfect recipe for quick desserts, bake sales, or just satisfying your sweet tooth.
Why You’ll Love This Recipe
- Quick & Easy – Uses a cake mix as the base, cutting down on prep time.
- Minimal Ingredients – Only six ingredients, all of which are simple pantry staples.
- Perfect Texture – A soft and chewy bottom layer with a rich, caramelized toffee topping.
- Crowd-Pleaser – These bars are always a hit at parties and gatherings.
Ingredients
- 1 (18.25 oz) vanilla cake mix
- 2 eggs
- 1/3 cup butter, melted
- 1 (14 oz) can sweetened condensed milk
- 1 tsp vanilla
- 1 cup toffee bits or Heath Bar bits (chocolate-coated toffee bits)
Directions
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking pan with non-stick cooking spray to prevent sticking.
2: Prepare the Base Layer
- In a large mixing bowl, combine the dry vanilla cake mix, 1 egg, and melted butter.
- Stir together until the mixture forms a thick dough.
- Press this dough evenly into the bottom of the prepared baking pan.
3: Make the Toffee Topping
- In a separate bowl, whisk together the sweetened condensed milk, remaining egg, and vanilla extract until fully combined.
- Stir in the toffee bits, making sure they are evenly distributed throughout the mixture.
4: Assemble and Bake
- Pour the toffee mixture evenly over the cake mix layer in the pan.
- Use a spatula to spread it out evenly, covering the entire surface.
- Bake for 20-25 minutes, or until the edges are golden brown and the center is set.
5: Cool and Serve
- Remove the pan from the oven and let the bars cool completely before cutting.
- Once cooled, slice into squares and enjoy!

Pro Tips and Variations
- Want extra crunch? Sprinkle an additional ¼ cup of toffee bits on top before baking.
- Chocolate Lover’s Twist: Add ½ cup of mini chocolate chips to the toffee mixture.
- For a salted caramel flavor: Sprinkle a pinch of flaky sea salt on top before serving.
- Make it nutty: Mix in ½ cup of chopped pecans or almonds for added crunch.
Serving Suggestions
- With Ice Cream: Serve warm with a scoop of vanilla ice cream.
- Drizzle on Chocolate: Melt chocolate and drizzle over the bars before serving.
- Great for Gifting: Wrap individual bars in parchment paper for a homemade gift.
Storage & Reheating
- Room Temperature: Store in an airtight container at room temperature for up to 3 days.
- Refrigeration: If you prefer a firmer texture, store in the fridge for up to a week.
- Freezing: These bars freeze well! Store in a freezer-safe bag for up to 3 months.
FAQs
Can I use a different cake mix flavor?
Yes! Try chocolate, butter pecan, or even spice cake mix for a fun twist.
What if I don’t have toffee bits?
You can substitute chopped Heath Bars or use caramel chips instead.
Can I double the recipe?
Yes, but use two 9×13 pans to ensure even baking.
How do I know when they’re done?
The edges should be golden brown, and the center should no longer be jiggly.
Conclusion
These Cake Mix Toffee Bars are a simple yet indulgent dessert that’s perfect for any occasion. Whether you make them for a party, a holiday, or just because, they’re guaranteed to be a hit. Try them out, and enjoy every gooey, toffee-filled bite!


Cake Mix Toffee Bars
- Total Time: 35 minutes
- Yield: 30 bars 1x
- Diet: Vegetarian
Description
These Cake Mix Toffee Bars are a quick and easy dessert with a chewy, buttery base and a rich toffee topping. Made with just six simple ingredients, they’re perfect for any occasion!
Ingredients
- 1 (18.25 oz) vanilla cake mix
- 2 eggs
- 1/3 cup butter, melted
- 1 (14 oz) can sweetened condensed milk
- 1 tsp vanilla
- 1 cup toffee bits or Heath Bar bits (chocolate-coated toffee bits)
Instructions
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking pan with non-stick cooking spray to prevent sticking.
Step 2: Prepare the Base Layer
- In a large mixing bowl, combine the dry vanilla cake mix, 1 egg, and melted butter.
- Stir together until the mixture forms a thick dough.
- Press this dough evenly into the bottom of the prepared baking pan.
Step 3: Make the Toffee Topping
- In a separate bowl, whisk together the sweetened condensed milk, remaining egg, and vanilla extract until fully combined.
- Stir in the toffee bits, making sure they are evenly distributed throughout the mixture.
Step 4: Assemble and Bake
- Pour the toffee mixture evenly over the cake mix layer in the pan.
- Use a spatula to spread it out evenly, covering the entire surface.
- Bake for 20-25 minutes, or until the edges are golden brown and the center is set.
Step 5: Cool and Serve
- Remove the pan from the oven and let the bars cool completely before cutting.
- Once cooled, slice into squares and enjoy!
Notes
- These bars taste even better the next day as the flavors have time to meld together.
- Always let them cool completely before cutting to ensure clean slices.
- To make slicing easier, use a sharp knife and wipe it clean between cuts.
- Prep Time: 10 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American