Buttery, chewy, and crunchy all at once, these toffee bars are layered with brown sugar, chocolate, and milky caramel. With a cookie-meets-candy personality and just the right balance of chew and crunch, these bars are the treat you’ll want to hoard in your fridge.
1cup(227g)unsalted buttersoftened to room temperature
1cup(200g)packed brown sugarlight or dark
1large egg yolk
1tsp(5ml)vanilla extract
2cups(250g)all-purpose flour
1/2tsp(2.5ml)salt
Toppings
1 1/2cups(255g)milk chocolate chipsor semisweet or dark if preferred
1cup(160g)toffee bitslike Heath baking bits
1/2cup(60g)chopped pecansoptional, toasted
Optional Caramel Swirl
12(120g)chewy caramel candieslike Werther's
2tbsp(30ml)heavy cream
Equipment
9x13-inch Baking Pan
Parchment paper
Hand Mixer
Mixing bowls
Prevent your screen from going dark
Instructions
Preheat the oven to 350°F (175°C) and line a 9x13-inch baking pan with parchment paper.
In a large mixing bowl, beat the softened butter and brown sugar together with a hand mixer for 2-3 minutes until light and fluffy.
Add the egg yolk and vanilla extract; mix briefly until combined.
Stir in the flour and salt with a spatula until just combined. The dough will look crumbly; that's perfect.
Press the crumbly dough evenly into the prepared pan using your hands or the back of a measuring cup.
Bake for 20-25 minutes, or until the edges are lightly golden. Remove from oven.
If adding caramel: Melt caramel candies with heavy cream in a microwave-safe bowl in 30-second increments, stirring until smooth. Pour and spread evenly over the hot crust.
Immediately sprinkle chocolate chips over the hot crust (and caramel, if using). Let sit for 2-3 minutes to soften, then gently spread into a smooth, even layer.
Sprinkle toffee bits and pecans (if using) over the chocolate while still warm so they stick.
Allow the bars to cool at room temperature until just barely warm. For cleanest slicing, refrigerate the pan for 30 minutes to firm up.
Lift the bars from the pan using the parchment, slice into squares, and enjoy!
Notes
Feel free to skip the pecans for a nut-free version. Add extra toffee bits for crunch.
For a s’mores twist, add mini marshmallows under the chocolate chips before melting.
Try dark chocolate chips or add a sprinkle of sea salt flakes on top for variation.
Storage: Bars keep well in an airtight container at room temp (up to 3 days), in the fridge (up to 7 days), or frozen for up to 2 months.