Ever have those days where you just NEED cake, but the thought of a complicated recipe makes you want to curl up with a bag of chips instead? Yeah, me too. But what if I told you there’s a cake that tastes like a warm hug and is ridiculously easy to whip up? Enter the Moist Coffee and Walnut Cake, my friend. It’s basically happiness in a slice, without the kitchen meltdown. Ready to get your bake on, stress-free?
Why This Recipe is Awesome
Okay, so why this one? First off, it’s moist. Like, seriously moist. No dry, crumbly sadness here, folks. Second, it combines two of life’s greatest pleasures: coffee and walnuts. It’s sophisticated enough to impress your fancy friends, but simple enough that you won’t need a culinary degree to pull it off. Honestly, if I can make this without setting off the smoke detector, you totally can too. It’s practically idiot-proof. Plus, your house will smell like a dream!
Ingredients You’ll Need
- 200g unsalted butter, softened: Don’t skip the “softened” part, unless you enjoy wrestling with cold butter. Trust me.
- 200g caster sugar: The fine stuff. Gives it that delicate crumb.
- 4 large eggs: Room temp, please! They mix better.
- 200g self-raising flour: The lazy baker’s best friend. No need to add baking powder separately.
- 1 tsp baking powder: Just a little extra lift, because we want maximum fluff.
- 2 tbsp instant coffee powder: Make it strong! This is a coffee cake after all.
- 2 tbsp hot water: To dissolve that coffee and unleash its caffeinated magic.
- 100g walnuts, chopped: The star of the show, after coffee, of course. Rough chop ’em, gives great texture.
- For the coffee buttercream:
- 100g unsalted butter, softened: Again with the softened!
- 200g icing sugar: Sift it! Unless you like lumpy frosting, you rebel.
- 1 tsp instant coffee powder: Again, strong!
- 1 tsp hot water: Just a tiny bit to make a potent coffee paste.
- Extra walnuts for decoration (optional): Because presentation matters, even if you’re eating it alone in your pajamas.
Step-by-Step Instructions
- Preheat and Prep: Get your oven heating to 180°C (160°C fan/Gas Mark 4). Line two 8-inch (20cm) round cake tins with baking parchment. No sticking allowed!
- Coffee Kick: Dissolve 2 tablespoons of instant coffee in 2 tablespoons of hot water. Stir it well. Set aside to cool slightly.
- Cream it Up: In a large bowl, cream together the softened butter and caster sugar until it’s light and fluffy. This usually takes a few minutes with an electric mixer. Don’t rush this step!
- Egg-cellent Addition: Beat in the eggs, one at a time, adding a spoonful of flour with each egg to prevent curdling.
- Fold in the Dry: Gently fold in the remaining self-raising flour and baking powder. Don’t overmix! A light hand is key for a tender cake.
- Add the Goodies: Stir in the cooled coffee mixture and the chopped walnuts. Mix just until combined.
- Divide and Bake: Divide the batter evenly between your two prepared cake tins. Bake for 20-25 minutes, or until a skewer inserted into the center comes out clean.
- Cool Down: Let the cakes cool in their tins for 10 minutes before turning them out onto a wire rack to cool completely. Patience is a virtue here!
- Buttercream Bonanza: While the cakes cool, make your buttercream. Dissolve 1 teaspoon of instant coffee in 1 teaspoon of hot water and let it cool. Beat the softened butter until creamy, then gradually beat in the sifted icing sugar until smooth. Add the cooled coffee paste and beat until light and fluffy.
- Assemble Your Masterpiece: Once the cakes are completely cool (seriously, wait!), spread half the buttercream over one cake, then top with the second cake. Spread the remaining buttercream on top. Decorate with extra walnuts if you’re feeling fancy.
Common Mistakes to Avoid
- Using cold butter: Just don’t. It won’t cream properly, and your cake will suffer. Room temperature, people!
- Overmixing the batter: Once the flour goes in, be gentle. Overmixing develops the gluten too much, leading to a tough cake. We want tender!
- Opening the oven door too early: Resist the urge! Your cake needs to set. Give it at least 15-20 minutes before peeking.
- Icing a warm cake: This is a rookie mistake. Your buttercream will melt into a sad, sugary puddle. Wait until the cakes are completely cool. I repeat, completely cool.
- Skimping on the coffee: This is a coffee cake. Make sure that coffee flavour shines through!
Alternatives & Substitutions
- Nut-Free? No problem! Omit the walnuts. You could add chocolate chips instead, or just leave it plain for a simple coffee cake.
- Decaf Delight? Absolutely! Use decaffeinated instant coffee if you want to enjoy this cake before bed without bouncing off the walls.
- Different Nuts? Pecans would be lovely here too, or even a mix of nuts if you’re feeling adventurous.
- Cream Cheese Frosting? Oh, you fancy, huh? A coffee cream cheese frosting would be divine! Just reduce the butter and use cream cheese instead, adjusting icing sugar to taste.
- Gluten-Free Flour? I haven’t personally tested it, but a good quality gluten-free self-raising flour blend (with added xanthan gum if not already included) should work. The texture might be slightly different, but it’ll still be delish, IMO.
FAQ (Frequently Asked Questions)
- Can I use margarine instead of butter? Well, technically yes, but why hurt your soul like that? Butter gives it a richness that margarine just can’t quite replicate. For best results, stick with butter.
- My cake is dry! What went wrong? Chances are you overbaked it, or your oven temperature was off. Invest in an oven thermometer, seriously. And keep an eye on it – ovens vary!
- How long does this cake last? If you manage not to devour it all in one sitting, it’ll keep well in an airtight container at room temperature for about 3-4 days. After that, it starts to get a bit sad.
- Can I freeze it? You betcha! You can freeze the unfrosted sponges wrapped tightly in cling film for up to a month. Defrost at room temp, then frost as usual. Or, freeze individual slices of the frosted cake for a quick treat later.
- I don’t have self-raising flour, can I use plain? Yes, you can! For every 100g of plain flour, add 1 teaspoon of baking powder. So for this recipe, you’d use 200g plain flour + 2 teaspoons baking powder.
- My buttercream is too runny/too stiff! Help! Too runny? Add a bit more sifted icing sugar. Too stiff? Add a tiny splash (like, a quarter teaspoon at a time) of milk or water until it loosens up. It’s all about consistency, FYI.
Final Thoughts
See? I told you it wasn’t scary! You’ve just whipped up a show-stopping (and incredibly tasty) Coffee and Walnut Cake that will have everyone asking for the recipe. And you, my friend, can just wink and say, ‘Oh, it was nothing.’ Now go impress someone—or yourself—with your new culinary skills. You’ve earned that slice (or two!). Happy baking, you legend!

