Chewy Toffee Brownies

Featured in: Indulge in Heavenly Sweet Treats

Say hello to your new favorite treat! These fudgy brownies are loaded with chocolate chips and toffee chunks, creating the perfect balance of crunchy and gooey. Dutch cocoa and chocolate chips bring deep chocolate richness, and the toffee adds caramel crunch. No mixer? No problem—just a whisk and a bowl will do the trick. They’re soft and chewy at room temp or extra fudgy when chilled. Perfect for any occasion, with just 10 minutes of prep required!
Lily chef cooking Cookingwithmee blog.
Updated on Wed, 30 Apr 2025 16:00:20 GMT
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A true brownie masterpiece balances opposites - dense, chocolate goodness inside paired with a crisp, crackly crust and sweet toffee chunks scattered throughout. After countless batches over the years, I've figured out that making these decadent treats comes down to getting the mix of ingredients just right and nailing the timing. Every time I bake them, I learn something new about how chocolate and sugar work their magic. I took these to a friend's dinner last weekend, and they secretly tucked away two squares for their breakfast. What makes them special? Understanding how different types of sweeteners and fats come together for that perfect bite.

Key Ingredients and Shopping Advice

  • Great cocoa powder: Go for Dutch-processed for richer flavor
  • Oil and butter: The foundation of amazing texture
  • Premium toffee pieces: Adds the best buttery snap
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Detailed Baking Guide

Step 1: Getting Ready
First, prep your baking pan properly. This goes beyond stopping stickiness - it actually affects how your brownies cook throughout. Make a paper sling that sticks up on two sides so you can lift them out easily. A quick spray of cooking oil makes sure nothing gets stuck.
Step 2: Making the Foundation
Start by melting your butter just until liquid - not hot, because too much heat ruins the texture. Mix this with your oil and both sugar types, stirring until it looks slightly grainy but consistent. This first mix sets you up for that classic brownie feel we're going for. Using both white and brown sugars isn't just about sweetness - it's how we get perfect moisture and that shiny top everyone loves.
Step 3: Perfect Mixing
Here's a key moment - adding eggs and vanilla. Whisk hard until you see the color lighten and the mix thicken. This step pulls in air and helps create that paper-thin top layer that makes brownies so special. You'll watch it change from grainy to smooth and glossy.
Step 4: Adding Dry Stuff
Be gentle with the flour mix - sift your cocoa and cornstarch right into the bowl to avoid lumps. Cornstarch is our hidden helper for softness. Fold carefully until you can't see any flour streaks, but don't overdo it. This careful handling is how we get fudgy, not cakey brownies.
Step 5: Mixing in the Goodies
When you add toffee bits and chocolate chips, do it with a plan: keep some for the top, spread them evenly through the batter, don't overmix, and make sure they're well distributed.
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Smart Baking Techniques

Pour your mix into the pan carefully, using your spatula to smooth it out evenly. Taking time to level it means everything bakes at the same rate. Scatter your saved toffee pieces and chocolate chips on top - they'll turn into gorgeous puddles of chocolate and caramel while baking. Getting your oven temperature right is super important. A fully heated 350°F oven creates just the right environment for that perfect balance between firm edges and gooey middle.

Spotting Perfect Brownies

Telling when brownies are done takes watching for several signs. Look for slight puffing around the edges and a set, glossy top. When you do the toothpick test for brownies, it works differently than for cake - you want some moist crumbs stuck to it. A completely clean toothpick means they're overdone. Watch for:
  • Edges pulling slightly away from the pan
  • Middle should feel firm but yield to touch
  • Top should look glossy with cracks
  • They should smell intensely chocolatey

Cooling Done Right

You'll need some patience during cooling time. Let them cool completely while still in the pan on a wire rack. This slow cooling lets them set up properly while keeping that perfect fudgy texture inside. For the neatest slices, pop them in the fridge for at least 30 minutes before cutting.

Keeping Your Brownies Fresh

After years making brownies, I've learned that how you store them really affects their texture. At room temp, keep them in an airtight container with parchment between layers. For extra fudginess, put them in the fridge - the cold makes their chocolate flavor stronger and gives them an almost truffle-like texture. Just let them warm up a bit before eating for the best flavor.

Frequently Asked Questions

→ Can I swap Dutch cocoa for natural cocoa?
Sure! Dutch cocoa is smoother and more robust, but natural cocoa works great too—no need to change anything else.
→ How do I know they’re baked through?
Start checking at 30 minutes by sticking a toothpick in—look for crumbs, not raw batter. Want less gooey brownies? Bake another 5-7 minutes for a slightly firmer texture.
→ What’s the best storage method?
Pop them in an airtight container—they stay fresh for up to 3 days on the counter or 5 days in the fridge. Bonus tip: chilled brownies = extra fudgy!
→ Are they overly sweet?
To cut down on sweetness, switch semisweet chips for dark or bittersweet ones. Reducing sugar isn’t recommended because it changes the texture.
→ Can I use homemade toffee bits?
Totally! Homemade toffee adds an extra-special flavor. Just chop small pieces to mix in easily.

Toffee Chocolate Brownies

Rich, chewy brownies packed with gooey chocolate and crunchy toffee pieces. No mixer required, these easy treats have an irresistible texture and amazing flavor!

Prep Time
10 Minutes
Cook Time
30 Minutes
Total Time
40 Minutes
By: Lily

Category: Decadent Desserts

Difficulty: Easy

Cuisine: American

Yield: 16 Servings (16 brownies)

Dietary: Vegetarian

Ingredients

→ Base Layer

01 1 teaspoon vanilla extract
02 ⅓ cup vegetable oil (74g)
03 2 large eggs plus 1 egg yolk, chilled
04 ¾ cup granulated sugar (150g)
05 ½ cup light brown sugar (100g)
06 5 tablespoons unsalted butter (71g)

→ Dry Mix

07 ¼ teaspoon fine sea salt
08 1 tablespoon cornstarch
09 ¾ cup Dutch-process cocoa powder (75g)
10 ½ cup all-purpose flour (63g)

→ Extras

11 1 cup toffee bits (170g), split in half
12 ¾ cup semisweet chocolate chips (128g), split in half

Instructions

Step 01

Preheat your oven to 325°F. Line a metal 8x8-inch pan with parchment, making sure the edges stick out slightly for easy lifting later.

Step 02

In a big, microwave-safe bowl, melt the butter (about a minute). Mix in both sugars while it's still warm, then let it cool a little. Whisk in the eggs, yolk, and vanilla for at least 30 seconds. Stir in the cocoa powder and oil until the mixture's smooth.

Step 03

Use a rubber spatula to gently fold in the salt, flour, and cornstarch. Reserve some chocolate chips and toffee bits, but mix the rest into the batter.

Step 04

Spread the batter into the prepared pan evenly, then sprinkle the remaining toffee bits and chocolate chips on top. Bake for 30 minutes. Look for moist crumbs on a tester—not wet batter. If drier brownies are your thing, add 5-7 more minutes.

Notes

  1. You can use natural cocoa instead, though Dutch-process will give you a richer, smoother taste.
  2. They stay fresh up to 3 days at room temperature in an airtight container, and 5 days if refrigerated.
  3. Pop them in the fridge for an ultra-fudgy texture.
  4. Use dark chocolate chips for a less sweet version.

Tools You'll Need

  • Metal baking pan, 8x8 inches
  • Baking parchment
  • Microwave-safe large bowl
  • Whisker
  • Flexible rubber spatula

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Includes dairy (butter)
  • Has eggs
  • Contains wheat (flour)