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Cake Mix Toffee Bars

Lisa

By Lisa

Feb 26, 2026

15 min prep
30 min cook
12 servings
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Cake Mix Toffee Bars

Welcome to a sweet escape with these delightful Cake Mix Toffee Bars! Imagine biting into a warm, gooey treat where the buttery crust meets a luscious layer of chocolate and crunchy toffee bits. This dessert is not just easy to make; it's a guaranteed crowd-pleaser that will have everyone coming back for seconds.

With minimal effort and maximum flavor, these bars are perfect for parties, bake sales, or a cozy night in. Let’s dive into why you will fall in love with this scrumptious recipe!

Why You'll Love This Recipe

  • Quick and Easy: Made with just a handful of simple ingredients, these bars come together in no time.
  • Irresistible Flavor: The combination of chocolate and toffee creates a rich, decadent treat that’s hard to resist.
  • Perfect for Sharing: Cut them into squares and watch them disappear at gatherings and parties!
  • Versatile Base: Use any cake mix you have on hand to customize the flavor to your liking.

About the Ingredients

Yellow Cake Mix

The base of our bars, this mix provides sweetness and a soft, cake-like texture that perfectly complements the other flavors.

Unsalted Butter

Melted to create a rich, buttery crust, this ingredient brings a depth of flavor and moisture to the bars.

Egg

This binding agent helps hold the crust together while adding a touch of richness to the overall taste.

Toffee Bits

These little chunks add a delightful crunch and a buttery sweetness that elevates the dessert to new heights.

Semi-Sweet Chocolate Chips

Melting beautifully into the filling, these chips provide a creamy, chocolaty contrast to the crispy toffee and crust.

Sweetened Condensed Milk

This ingredient adds a luscious creaminess, blending all the flavors together while keeping the bars moist.

Vanilla Extract

A splash of vanilla enhances the sweetness and adds a warm, aromatic note that ties all the flavors together.

Sea Salt

A pinch of sea salt balances the sweetness, enhancing the overall flavor profile of these decadent bars.

Tips & Tricks

Line Your Pan

Using parchment paper not only prevents sticking but also makes for easy cleanup when it’s time to slice your bars.

Don’t Overmix

Stir the dough just until combined to keep the texture soft and tender.

Chill Before Cutting

Refrigerating the bars for an hour after baking helps them set properly, making slices cleaner and neater.

Customize Your Toppings

Feel free to mix in nuts or swap the chocolate chips for white chocolate or peanut butter chips for a different twist.

Pro Tips

  • Use Fresh Ingredients: Fresh cake mix and chocolate chips will yield the best flavor and texture.
  • Monitor Baking Time: Keep an eye on the bars as they bake; you want them golden brown but not overdone.
  • Experiment with Flavors: Try different cake mixes like chocolate or red velvet for unique variations.
  • Serve Warm: These bars are heavenly when served warm, just slightly melted and gooey!

Step-by-Step Instructions

Preheat and Prepare

Start by preheating your oven to 350°F (175°C) and greasing a 9x13-inch baking dish or lining it with parchment paper for easy removal.

Mix the Dough

In a mixing bowl, combine the yellow cake mix, melted butter, and egg. Stir until a soft dough forms, feeling the buttery texture come together.

Form the Crust

Press about two-thirds of the dough evenly into the bottom of the prepared pan, creating a solid base for all the delicious toppings.

Add the Filling

In a separate bowl, whisk together sweetened condensed milk, vanilla extract, and sea salt. Sprinkle the toffee bits and chocolate chips over the crust, then pour the creamy milk mixture on top.

Crumble and Bake

Crumble the remaining dough over the filling, leaving some gaps for a rustic look. Bake for 25-30 minutes until the edges are golden brown and bubbly.

Delicious Variations

Chocolate Cake Mix

Swap the yellow cake mix for chocolate cake mix for an extra chocolaty treat that’s sure to please chocolate lovers!

Nutty Crunch

Add chopped pecans or walnuts to the topping for an added crunchy texture and nutty flavor.

Minty Delight

Incorporate mint chocolate chips instead of semi-sweet for a refreshing twist that’s perfect for the holidays.

How to Store Cake Mix Toffee Bars

Refrigerator

Keep the bars in an airtight container in the refrigerator for up to a week. Enjoy cold or warm them slightly before serving.

Freezer

Freeze the bars for up to three months. Wrap them tightly in plastic wrap and then in aluminum foil for best results.

Reheating

To reheat, place individual bars in the microwave for about 15-20 seconds or until warmed through.

Frequently Asked Questions

Can I use a different type of cake mix?

Absolutely! Feel free to experiment with any flavor of cake mix you have on hand.

How do I know when the bars are done?

Look for a golden brown top and bubbly edges; a toothpick inserted should come out with a few moist crumbs.

Can I make these bars ahead of time?

Yes! They store well in the fridge and can be made a day or two in advance.

What can I do if my bars are too gooey?

If they don’t set properly, try refrigerating them longer before cutting to help them firm up.

These Cake Mix Toffee Bars are sure to become a favorite in your dessert repertoire. With their melt-in-your-mouth texture and rich flavors, they are an absolute must-try. So gather your ingredients, follow the simple steps, and indulge in this delectable treat today!

Cake Mix Toffee Bars

Cake Mix Toffee Bars

Indulge in these Cake Mix Toffee Bars that combine a buttery crust, gooey chocolate, and crunchy toffee bits for a dessert that's irresistibly delicious and easy to make!

15 min
Prep Time
30 min
Cook Time
12
Servings
350 kcal
Calories

Ingredients

Instructions

  1. 1 Preheat the oven to 350°F (175°C). Grease or line a 9x13-inch baking dish with parchment paper.
  2. 2 In a mixing bowl, combine yellow cake mix, melted butter, and egg. Stir until a soft dough forms.
  3. 3 Press about two-thirds of the dough into the bottom of the prepared pan to form an even crust.
  4. 4 In a small bowl, whisk together sweetened condensed milk, vanilla extract, and a pinch of sea salt. Sprinkle toffee bits and chocolate chips evenly over the crust, then pour the milk mixture on top.
  5. 5 Crumble the remaining dough over the filling, leaving some gaps for a rustic look.
  6. 6 Bake for 25-30 minutes, until golden brown and bubbly at the edges.
  7. 7 Allow the bars to cool completely in the pan. For cleaner slices, refrigerate for 1 hour before cutting.

Chef's Note

These bars can be made a day in advance and stored in an airtight container at room temperature for 3 days or in the fridge for up to a week. For a twist, try swapping toffee bits for chopped Heath bars or use chocolate cake mix instead.

Servings: 12

Cuisine: American

Course: Dessert

Nutrition (per serving): 6gg protein