A Whiff of Coffee, A Crunch of Walnut
There’s something irresistible about the aroma of coffee and freshly baked muffins filling the kitchen. These Coffee Walnut Muffins with Streusel are soft, fluffy, and packed with crunchy walnuts, then topped with a buttery, golden streusel for that perfect bakery-style finish.
Best of all, they’re so easy to make and don’t require any fancy equipment, making them perfect for those sudden cravings when you want something simple yet special. These muffins hit all the right notes. Easy to make and full of flavour, they’re the kind of muffins you’ll want to bake again and again.
Why You’ll Love this Coffee Walnut Muffins with Streusel Recipe
- Soft & Fluffy: Light, melt-in-your-mouth texture.
- Bakery-Style Dome: Tall, golden tops that impress.
- Crunchy Walnuts: A satisfying nutty bite in every mouthful.
- Buttery Streusel Topping: Adds indulgence and visual appeal.
- Rich Coffee Flavour: Cozy, aromatic, and comforting.
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Ingredients in these Coffee Walnut Muffins
At a glance: Here is a quick snapshot of what ingredients are in this recipe. Please see the recipe card below for specific quantities.
- Unsalted butter, melted: Adds richness and moisture. Make sure it’s slightly cooled before adding to the muffin batter.
- Light brown sugar & caster sugar: Provide sweetness and tenderness, and help with browning. I’ve reduced the amount of sugar to give the muffins just the right balance without being overpowering.
- Egg: Provides structure, lift, and richness.
- Instant coffee dissolved in hot water: Infuses the muffins with a bold coffee flavour.
- Sour cream: Adds moisture, tenderness, and a slight tang. You can also use the same amount of plain yogurt instead.
- Vanilla extract: Optional, but it enhances flavour and aroma.
- All purpose flour: Gives structure to the muffins.
- Baking powder: Leavening agent that makes the muffins rise and become fluffy.
- Sea salt: Enhances overall flavour.
- Walnuts, chopped and coated in flour: Adds crunch and nutty flavour, and coating helps them stay evenly distributed. You can swap walnuts for other nuts such as pecans or hazelnuts, or omit them entirely—the muffins will still taste wonderful.
How to Make Coffee Walnut Muffins with Streusel
Here are some key tips for making the perfect bakery-style coffee walnut muffins with streusel ! Be sure to scroll down to the printable recipe card for the ingredient amounts and watch my step-by-step video tutorial for a complete guide to learn how to make these muffins.
- Melt the butter in a saucepan over medium low heat. Set aside and allow it to cool completely.
- Dissolve the instant coffee powder in hot water. Stir until fully dissolved and smooth and leave it to cool.
- Lightly mist the walnut pieces with water (a spray bottle works best).
- Add about 2 tablespoons of flour and toss well to coat each piece.
- In a mixing bowl, add melted butter, brown sugar, and caster sugar.
- Whisk until well combined.
- Add the egg, cooled coffee mixture, sour cream, and vanilla extract.
- Whisk until smooth.
- Sift in the remaining flour, baking powder, and salt.
- Whisk until just combined.
- Add the flour-coated walnuts.
- Fold in with a spatula.
- Preheat the oven to 220 ℃ fan (425℉) and line a muffin tin with 6 tulip muffin cases.
- Fill each liner approximately to the top of the cake pan level (about 1½ medium ice cream scoops of batter).
- Spoon chilled streusel generously over the top.
- Bake in a preheated oven at 220°C fan for 5 minutes, then reduce the heat to 180°C fan and bake for another 13–15 minutes, or until a skewer inserted comes out clean.
- Look at these beautiful freshly baked muffins! The initial high heat for the first 5 minutes gives them an ‘oven spring,’ creating a tall, bakery-style dome.
- Once they’re cool enough to handle, remove the muffins from the pan.
- Transfer them to a wire rack to avoid soggy bottoms.
- Peel back the tulip liners and enjoy while still warm with a cup of coffee.
Tips for Making the Best Coffee Walnut Muffins with Streusel
- Cool the butter and coffee mixture: Make sure both the melted butter and dissolved coffee are fully cooled before adding to the batter to avoid curdling the egg or affecting texture.
- Coat the walnuts in flour: Tossing the walnuts in a little flour helps them stay evenly distributed in the muffins instead of sinking to the bottom.
- Use tulip-shaped muffin liners: They provide extra support for a tall bakery-style dome and make the muffins look more professional.
- Preheat at high temperature: Start baking at 220°C (fan) for 5 minutes, then lower to 180°C (fan) to get that bakery-style dome.
- Chill the streusel: Keep the streusel in the fridge until ready to use; it adds crunch and prevents it from melting into the batter.
How to Serve Coffee Walnut Muffins with Streusel
- Slightly Warm: Serve the muffins fresh from the oven or warmed slightly. The coffee aroma is at its best, and the texture is soft and inviting.
- With Coffee or Tea: Pair them with a hot cup of coffee or tea for the ultimate cozy treat.
- As a Simple Afternoon Treat: I personally love enjoying these muffins on their own with a cup of coffee in the afternoon. I’m not usually a dessert-craving person, but the rich coffee flavour makes them irresistible all by themselves.
- Presentation: Arrange on a plate or in a rustic basket for a café-style look—perfect for breakfast, brunch, or an afternoon snack.
- Optional Twist – Coffee Cream Icing: For a softer, sweeter version, skip the streusel and top the muffins with a light coffee cream icing. It adds a creamy finish and an extra coffee kick, perfect if you prefer a smoother topping.
How to Store Coffee Walnut Muffins with Streusel
- Room Temperature: Keep muffins in an airtight container at room temperature for 2–3 days. This helps maintain their soft, fluffy texture and keeps the streusel crunchy.
- Reheating: Warm slightly in the oven or microwave before serving to refresh their aroma and texture.
- Freezing: Wrap muffins individually in plastic wrap or place in a freezer-safe bag. Freeze for up to 2 months. Thaw at room temperature or warm gently before enjoying.
- Tip: If you’ve added a coffee cream icing instead of streusel, store in the fridge for 2–3 days to keep the icing fresh.
Frequently Asked Questions
Start baking at a high temperature (220°C fan) for 5 minutes, then lower to 180°C fan for the remainder of the bake. This “oven shock” helps the muffins rise beautifully.
Absolutely. Store baked muffins in an airtight container at room temperature for 2–3 days, or freeze for up to 2 months.
Yes! You can leave it off or replace it with a coffee cream icing for a smoother, sweeter topping.
Yes! A whisk and spatula work perfectly. Mix the wet and dry ingredients gently to avoid over mixing.
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Coffee Walnut Muffins with Streusel
- Prep Time: 30 mins
- Cook Time: 18 mins
- Total Time: 48 minutes
- Yield: 6 muffins 1x
- Category: Muffins & Cupcakes
- Method: Bake
- Cuisine: Western
Description
Wake up to the irresistible aroma of coffee and freshly baked muffins! These Coffee Walnut Muffins with Streusel are soft, fluffy, and packed with crunchy walnut pieces. Topped with a buttery, golden streusel, they have that perfect bakery-style finish that makes every bite a treat.
Ingredients
For the Muffin Batter
- 125 g all purpose flour
- 1 1/4 tsp baking powder
- 1/4 tsp salt
- 30 g caster sugar
- 40 g light brown sugar
- 57 g unsalted butter -melted & slightly cooled
- 1 egg
- 1 tbsp instant coffee powder
- 1/2 tsp vanilla extract
- 90 g sour cream
- 3/4 tbsp water – hot
- 80 g walnuts – slightly chopped
For the Streusel
- 32 g unsalted butter – melted & cooled
- 45 g all purpose flour
- 35 g light brown sugar
- 1/4 tsp ground cinnamon
- Pinch of salt
Instructions
Make the Streusel
- In a bowl, combine flour, brown sugar, cinnamon, and salt. Add cooled melted butter and toss with a fork until the mixture becomes crumbly and sandy.
- Chill until needed.
Make the Muffins
- Preheat the oven to 220 ℃ fan (425℉) and line a muffin tin with 6 tulip muffin cases.
- Melt the butter in a saucepan over medium low heat. Set aside and allow it to cool completely.
- In a small bowl, dissolve the instant coffee powder in hot water. Stir until fully dissolved and smooth. Leave to cool to room temperature before adding to the batter.
- Place the chopped walnuts in a small bowl and lightly mist them with water (a spray bottle works best). Add about 2 tablespoons of flour and toss well to coat each piece.
- In a mixing bowl, whisk melted butter, brown sugar, and caster sugar until well combined. Add the egg, cooled coffee mixture, sour cream, and vanilla extract; whisk until smooth.
- Sift in the remaining flour, baking powder, and salt. Whisk until just combined. Fold in flour-coated walnuts with a spatula.
- Fill each liner approximately to the top of the cake pan level (about 1½ medium ice cream scoops of batter). Spoon chilled streusel generously over the top.
Bake and Cool the Muffins
- Bake in a preheated oven at 220°C fan for 5 minutes, then reduce the heat to 180°C fan and bake for another 13–15 minutes, or until a skewer inserted comes out clean.
- Let the muffins cool slightly in the pan, then transfer to a wire rack to avoid soggy bottoms.
- Peel back the tulip liners and enjoy while still warm with a cup of coffee.
Notes
- Watch the video tutorial to see how I make these muffins in action.
- If you don’t have tulip muffin liners, you can use regular cupcake liners instead. Just fill them about three-quarters full, as the muffins puff up a lot during baking.
- Make sure the melted butter and coffee mixture are cooled before adding them to the batter—this keeps the texture light and smooth.
- Also, ensure the melted butter in the streusel is completely cooled—otherwise, it can melt the sugar and turn the mixture into a paste.
- Coating the walnuts with flour helps them stay evenly distributed in the muffins.
- Feel free to swap the walnuts with other nuts such as hazelnuts or pecans—or leave them out completely. The muffins will still taste amazingly delicious.
Nutrition
- Serving Size: 1 muffin
- Calories: 383kcal
- Sugar: 13g
- Sodium: 220mg
- Fat: 25g
- Saturated Fat: 10g
- Carbohydrates: 41g
- Fiber: 2g
- Protein: 6g
- Cholesterol: 68mg
Final Thoughts
These Coffee Walnut Muffins with Streusel are a simple yet indulgent treat, perfect for cozy mornings, afternoon coffee breaks, or a casual brunch. The combination of soft, fluffy muffins, rich coffee flavour, crunchy walnuts, and buttery streusel creates a balance of textures and flavours that’s hard to resist.
They’re easy to make, don’t require any fancy equipment, and can be customised with different nuts or a coffee cream icing for a fun twist.
Enjoy them fresh, share them with friends, and savour every bite—because sometimes, the simplest treats are the most special.
Thanks for joining me in the kitchen today. Hope you’ll love this! Enjoy and keep baking! 💛
This Post Has 2 Comments
Very good! I cut down the sugar and instead of streusel I sprinkled some chopped walnut and sugar on the muffins. Also, I used yogurt instead of sour cream. Turned out perfect! Thanks for sharing the recipe.
Hi Jean,
Thank you so much for your lovely review! 😊 I love your tweaks—cutting the sugar and topping with chopped walnuts sounds delicious, and yogurt is a perfect substitute for sour cream. So glad they turned out well! 🧁✨