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Home » Recipes » Slices

Pecan Toffee Shortbread Slice

Published: Dec 4, 2023 · Modified: Jun 10, 2026 by Libby Hakim · Leave a Comment

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A perfect buttery shortbread base with a rich toffee dotted with pecans – life doesn't get much better than Pecan Toffee Shortbread Slice enjoyed with a friend over a cuppa!

Pecan Toffee Shortbread
Jump to:
  • The Recipe for Pecan Toffee Shortbread
  • Ingredient notes
  • How to make Pecan Toffee Shortbread Slice
  • Storeage
  • More sensational slice recipes
  • Pecan Toffee Shortbread

The Recipe for Pecan Toffee Shortbread

I found this recipe when flicking through a copy of The Cookie and Biscuit Bible that my mum had picked up at a garage sale.

I couldn't get past the page – I wanted to pick up a piece of the slice from the page of the book and take a bite! The ingredients for the shortbread base, in particular, piqued my interest. And while it's a little similar to the deliciously retro Peanut Caramel Slice, it was different enough to give it a go.

recipe for pecan toffee shortbread

Love pecans? Try my Passionfruit Pecan Slice. Love shortbread? Try my Scottish Shortbread and Millionaire's Shortbread (aka Caramel Slice). Love toffee? You might like to try one of these recipes: School Fete Toffees, Almond Rock, Christmas Crack or Russian Caramels.

Ingredient notes

To make this lovely slice, you'll need:

Base

  • butter
  • caster sugar
  • smooth peanut butter
  • espresso / black coffee
  • plain flour
  • cornflour / cornstarch.

Topping

  • brown sugar
  • golden syrup (or light corn syrup)
  • butter
  • pecans.

You'll also need a slice tin (approx 28 x 18cm / 11 x 7 inches).

Ingredient quantities are in the recipe card at the end of this post.

Variation ideas

You could substitute the pecans, of course, with macadamias, almonds or any other nut you prefer.

How to make Pecan Toffee Shortbread Slice

Prepping

Start by pre-heating the oven to moderate (180 degrees celsius / 350 degrees fahrenheit).

Also prepare by greasing a slice tin (approx 28 x 18cm) and line with baking paper, leaving paper overhanging at sides to assist with removal of slice later.

Bake the shortbread base

Beat butter, sugar, peanut butter and coffee in a stand mixer until the mixture becomes a lighter colour. Fold the sifted flours into the mixture to form a dough. Press the mixture into the tin and prick all over with a fork.

TIP: The mixture is quite sticky, so it helps to use a sheet of baking paper on top of the mixture and the back of a metal spoon to smooth out the mixture in the tin.

Bake for about 20 minutes or until a light golden colour.

Add the topping

TIP: You can start making the topping about 5-10 minutes before the base is ready to come out of the oven.

Place the brown sugar, golden syrup and butter in a saucepan. Melt these ingredients over low heat and then bring to a simmer. Simmer for 3-5 minutes.

TIP: For a chewy topping, simmer more slowly and for less time. For a crunchier topping, simmer harder for longer.

Stir halved pecans into the topping mixture.

Once base comes out of the oven, pour topping mixture over base and spread out evenly.

Allow your shortbread to cool completely before removing it from the tin and slicing into squares with a sharp knife.

Storeage

Store your slice at room temperature in an airtight container. Stored like this, it should last up to a week. It's not suitable for freezing.

More sensational slice recipes

Love your slices? Try one of these recipes...

  • lemon meringue slice
    Lemon Meringue Slice (With Biscuit Base & Tangy Lemon Filling)
  • Mars Bar Slice stacked on plate.
    Mars Bar Slice – Chewy & Chocolatey Classic
  • Apricot Slice stacked on a plate.
    Old-fashioned Apricot Slice
  • anzac slice with choc macadamia filling.
    Anzac Slice

Made this recipe and love it? Please take a moment to rate the recipe and leave a comment below. It’s such a help to others who want to try the recipe. (And it really makes my day to hear how Nana Ling's recipes are being made, shared and loved all around the world! - Libby x)

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pecan toffee shortbread.

Pecan Toffee Shortbread

Libby Hakim
A rich and buttery shortbread with a fabulously crunchy nut and toffee topping.
5 from 1 vote
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Prep Time 20 minutes mins
Cook Time 20 minutes mins
Total Time 40 minutes mins
Course Dessert
Cuisine Australian
Servings 24 squares
Calories 212 kcal

Equipment

  • slice tin (approx 28 x 18cm / 11 x 7 inches)

Ingredients
  

Base

  • 115 grams butter
  • ⅓ cup caster sugar (75 grams)
  • 2 tablespoons smooth peanut butter
  • 1 tablespoon espresso / black coffee
  • 1 ½ cups plain flour (185 grams)
  • ½ cup cornflour / cornstarch (75 grams)

Topping

  • 1 cup brown sugar (175 grams)
  • 2 tablespoons golden syrup (or light corn syrup)
  • 175 grams butter
  • 1 cup pecans (150 grams)

Instructions
 

  • Pre-heat oven to moderate (180 degrees celsius / 350 degrees fahrenheit).
  • Grease a slice tin (approx 28 x 18cm) and line with baking paper, leaving paper overhanging at sides to assist with removal of slice later.
  • Cream butter, sugar, peanut butter and coffee until the mixture becomes a lighter colour.
  • Fold sifted flours into the mixture to form a dough.
  • Press into tin, using a sheet of baking paper on top of the mixture and the back of a metal spoon to smooth out the mixture in the tin. Prick all over with a fork.
  • Bake for 20 minutes or until a light golden colour.
  • About 10 minutes before the base is ready to come out the oven, start making the topping by placing brown sugar, golden syrup and butter in a saucepan. Melt these ingredients over low heat and then bring to a simmer. Simmer for 3-5 minutes. (For a chewy topping, simmer more slowly and for less time. For a crunchier topping, simmer harder for longer.)
  • Stir halved pecans into the topping mixture.
  • Once base comes out of the oven, pour topping mixture over base and spread out evenly.
  • Allow to cool completely before removing from the tin and slicing into squares with a sharp knife.

Notes

Storing:
It should last for up to a week if stored in a cool place in an airtight container.
Freezing:
Not suitable.
Nutrition:
The nutrition information is an automatically generated estimate and is not guaranteed to be accurate.

Nutrition

Calories: 212kcalCarbohydrates: 23gProtein: 2gFat: 13gSaturated Fat: 7gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.4gCholesterol: 26mgSodium: 88mgPotassium: 50mgFiber: 1gSugar: 13gVitamin A: 304IUVitamin C: 0.05mgCalcium: 15mgIron: 1mg
Tried this recipe?If you love it, let me know!

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Hi, I'm Libby, a recipe collector and writer. I love everything about home cooking and share modern classics and recipes that have been passed down for generations – I hope you find a few that bring back treasured memories.

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