There’s something undeniably satisfying about a well-made slice—whether it’s a quick snack with your morning coffee or a sweet treat to end the day. The Coffee Ginger Walnut Slice is a standout recipe that combines rich, earthy coffee, warm spicy ginger, and the satisfying crunch of walnuts. It’s a harmonious blend of flavors and textures that’s both comforting and sophisticated.
In this guide, we’ll break down everything you need to know to make this delicious slice, from ingredient selection to baking tips. This recipe is simple and satisfying for both novice and experienced bakers.

Why This Recipe Works
Before diving into the steps, let’s explore why this combination is so irresistible:
- Coffee blends sweetness with depth and a hint of bitterness.
- Ginger brings warmth and a subtle kick, enhancing the overall flavor profile.
- Walnuts provide a satisfying crunch and nutty richness.
Together, these ingredients create a slice that’s moist, flavorful, and just the right amount of indulgent.
Ingredients You’ll Need
Here’s what you’ll need to make this delicious coffee ginger walnut slice:
For the Base:
- 1 ½ cups (180g) all-purpose flour
- ½ cup (100g) brown sugar
- ½ cup (115g) unsalted butter, cold and cubed
- 1 tsp ground ginger
- 1 tbsp instant coffee granules (or espresso powder)
For the Topping:
- 2 large eggs
- ½ cup (100g) brown sugar
- ¼ cup (60ml) golden syrup (or honey)
- 1 tsp vanilla extract
- 1 tbsp finely grated fresh ginger
- 1 ½ cups (150g) walnuts, roughly chopped
- 1 tbsp all-purpose flour (to bind the topping)
Optional Additions:
- A pinch of cinnamon for extra warmth
- Dark chocolate drizzle for a decadent finish
Step-by-Step Instructions For Coffee Ginger Walnut Slice Recipe
Step 1: Prepare the Base
- Preheat your oven to 350°F (180°C) and line an 8×8-inch (20x20cm) baking pan with parchment paper.
- In a food processor, pulse the flour, brown sugar, butter, ground ginger, and coffee until the mixture resembles breadcrumbs.
- Press this mixture firmly into the prepared pan, ensuring an even layer.
- Bake for 15 minutes until lightly golden. While you prepare the topping, take it out and allow it to cool slightly.
Step 2: Make the Topping
- In a bowl, whisk the eggs, brown sugar, golden syrup, vanilla, and fresh ginger until smooth.
- Incorporate the flour and chopped walnuts until thoroughly blended.
- Pour this mixture over the pre-baked base, spreading it evenly.
Step 3: Bake to Perfection
- The topping should be set and just a little stiff to the touch after 20 to 25 minutes of baking in the oven.
- After letting it cool fully in the pan, cut it into squares.
Optional Finishing Touch
- For an extra layer of flavor, melt dark chocolate and drizzle it over the cooled slice.

Coffee Ginger Walnut Slice Recipe
Ingredients
For the Base:
- 1 ½ cups (180g) all-purpose flour
- ½ cup (100g) brown sugar
- ½ cup (115g) unsalted butter, cold and cubed
- 1 tsp ground ginger
- 1 tbsp instant coffee granules (or espresso powder)
For the Topping:
- 2 large eggs
- ½ cup (100g) brown sugar
- ¼ cup (60ml) golden syrup (or honey)
- 1 tsp vanilla extract
- 1 tbsp finely grated fresh ginger
- 1 ½ cups (150g) walnuts, roughly chopped
- 1 tbsp all-purpose flour (to bind the topping)
Instructions
Step 1: Prepare the Base
- Preheat your oven to 350°F (180°C) and line an 8×8-inch (20x20cm) baking pan with parchment paper.
- In a food processor, pulse the flour, brown sugar, butter, ground ginger, and coffee until the mixture resembles breadcrumbs.
- Press this mixture firmly into the prepared pan, ensuring an even layer.
- Bake for 15 minutes until lightly golden. While you prepare the topping, take it out and allow it to cool slightly.
Step 2: Make the Topping
- In a bowl, whisk the eggs, brown sugar, golden syrup, vanilla, and fresh ginger until smooth.
- Incorporate the flour and chopped walnuts until thoroughly blended.
- Pour this mixture over the pre-baked base, spreading it evenly.
Step 3: Bake to Perfection
- The topping should be set and just a little stiff to the touch after 20 to 25 minutes of baking in the oven.
- After letting it cool fully in the pan, cut it into squares.
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Tips for the Best Coffee Ginger Walnut Slice
- Use Fresh Ginger – While ground ginger works in the base, freshly grated ginger in the topping provides a brighter, more vibrant flavor.
- Toast the Walnuts – Lightly toasting the walnuts before adding them enhances their nuttiness and crunch.
- Adjust Coffee Strength – If you prefer a stronger coffee flavor, dissolve 2 tsp of instant coffee in 1 tsp of hot water before adding it to the base.
- Storage Tips –For extended storage, freeze or store in an airtight container for up to five days.

Why This Recipe Stands Out
Unlike overly sweet desserts, this slice strikes a perfect balance:
- Texture: The buttery, crumbly base contrasts beautifully with the chewy, nutty topping.
- Flavor Complexity: The interplay of coffee’s bitterness, ginger’s spice, and walnuts’ richness makes each bite interesting.
- Versatility: Enjoy it as an afternoon snack, dessert, or even a breakfast treat with yogurt.
Final Thoughts
The Coffee Ginger Walnut Slice is a delightful fusion of bold and comforting flavors. Although it’s simple to prepare, it looks good enough to serve at parties. Whether you’re a coffee lover, a ginger enthusiast, or just someone who enjoys a good homemade treat, this recipe is sure to become a favorite.