Pecan and Coffee Cake with Marshmallow Mocha Glaze

There’s something irresistibly soothing about this pecan and coffee cake, the way it fills the kitchen with its toasty, aromatic warmth. I make it on the days that call for comfort in cake form, when a tender crumb and a glossy mocha glaze feel like exactly the right kind of indulgence.
Slice of pecan and coffee cake on a plate, showing the tender crumb and shiny mocha glaze with pecan topping.

A cosy bake for the days that ask for something sweet

There are afternoons when the only sensible thing to do is put the kettle on and make cake. Not a grand affair, just something simple and comforting. This pecan and coffee cake is exactly that sort of bake. It comes together with a whisk and a bowl in a matter of minutes.

I love the way coffee brings warmth to the kitchen before it even hits the batter. And once the cake is in the oven, the smell is enough to make the entire house feel a little softer round the edges. But the real joy here is how un-fussy it is. You don’t need softened butter or elaborate steps. You just need a few everyday ingredients and the willingness to whisk!

Why this cake works

The heart of this pecan and coffee cake is its texture. Oil-based cakes have a particular tenderness to them, they stay soft for days and never turn sulky or dry. The coffee deepens the flavour without overpowering it, while the pecans bring a lovely quiet crunch. Not the sort that sends shards flying; more the gentle, toasted, nutty crunch you only get from pecans.

Because the batter is so straightforward, the cake stays true to its promise: light, moist and fragrant. There’s none of that heaviness that coffee cakes can sometimes fall into. Instead, every slice feels balanced, sweet but not overly so, comforting without being stodgy.

And since it bakes in a simple square tin, it’s the kind of cake you can happily take to a friend’s house, cut into generous slabs, or keep on the counter for whenever someone asks, “Is there anything to go with a coffee?”

A glaze that’s a little wicked

I should say a word about the marshmallow mocha glaze, because it plays the role of the finishing flourish with surprising elegance. Marshmallows don’t immediately sound like the makings of a glaze, I know. Yet once they melt down with a little coffee, cocoa and oil, something delightful happens. You get this glossy, fudgy, slightly elastic pour that sets into a soft, shiny layer. It clings to the cake in a way that feels almost playful.

It’s not a buttercream, nor is it a ganache. It’s something in between: sweet, silky, nostalgic. The mocha note stops it from becoming childish, and the chopped pecans scattered over the top give just enough texture to keep it grown-up. I particularly like how the glaze catches the light, the way it creates a thin, tender shell that cracks just slightly when you cut into it.

Serving ideas – simple pleasures

You can serve this cake with nothing more than a mug of hot coffee, and that would be perfect. But if you’re feeling indulgent, a spoonful of cold cream next to a warm slice is bliss. The contrast of temperatures works magic with the mocha glaze. And if you want to lean even further into the coffee theme, a quick dusting of chocolate sprinkles on top makes it look instantly more polished.

If you’re someone who loves cakes that feel both familiar and a little bit special, this pecan and coffee cake will become a favourite. It’s forgiving, fragrant, and unfailingly delicious. And because the glaze feels like a quiet little twist, it turns an everyday traybake into something worth sharing.

Below, you’ll find the full recipe card with everything you need. But I promise, once you’ve made it once, you’ll remember it forever.

Slice of pecan and coffee cake served with a mug of coffee, styled as a cosy afternoon treat.

If you enjoyed this pecan and coffee cake, chances are you’ll love my Orange & Poppyseed Cake – bright, tender and beautifully citrussy. And if you’re in the mood for something richer, try my Ultimate Macadamia Brownie Bites or the Salted Chocolate Caramel Pots… both unapologetically decadent and exactly what a sweet tooth deserves.

You can also watch me make everything IRL over on my Tik Tok and Instagram channels. I’d love to see you over there, come say hi!

Yields: 9 Servings Difficulty: Medium Prep Time: 20 Mins Cook Time: 25 Mins Total Time: 45 Mins
A soft, coffee-scented pecan cake topped with a glossy marshmallow mocha glaze and a scatter of nuts. Easy to whisk together, even better with a cup of something hot.

Ingredients

0/15 Ingredients
Adjust Servings
    Pecan & Coffee Cake
  • Marshmallow Mocha Glaze

Instructions

0/20 Instructions
    Prep the tin and oven (5 minutes)
  • Line a 20 cm square cake tin (or similar) with baking paper, leaving an overhang for easy lifting.
  • Preheat the oven to 180°C (160°C fan / Gas 4).
  • Mix the dry ingredients (3 minutes)
  • In a large mixing bowl, whisk together the plain flour, sugar, baking powder, bicarbonate of soda and a pinch of salt until well combined.
  • Whisk the wet ingredients (3 minutes)
  • In a jug or small bowl, whisk the eggs, vegetable oil and cooled strong coffee until smooth.
  • Make the cake batter (3–4 minutes)
  • Pour the wet mixture into the dry ingredients and whisk until you have a smooth batter with no streaks of flour.
  • Fold in the chopped pecans.
  • Bake the cake (20–25 minutes)
  • Pour the batter into the lined tin and level the top.
  • Bake for 20–25 minutes, or until the cake is risen and a skewer inserted into the centre comes out clean or with just a few moist crumbs.
  • Cool the cake (15 minutes)
  • Leave the cake to cool in the tin for about 10 minutes, then use the baking paper to lift it onto a wire rack.
  • Allow it to cool completely before adding the glaze.
  • Start the marshmallow mocha glaze (5 minutes)
  • Add the marshmallows, strong coffee, cocoa powder and vegetable oil to a small non-stick saucepan.
  • Place over a low heat, stirring continuously, until the marshmallows melt and you have a smooth, glossy mixture.
  • Adjust the glaze (5–10 minutes)
  • Remove the pan from the heat.
  • Sift in 1–2 tbsp icing sugar and stir until smooth.
  • Leave the glaze to cool for 5–10 minutes, stirring occasionally, until it thickens slightly but is still pourable.
  • It should ribbon off the spoon rather than run like water.
  • Glaze the cake (5 minutes)
  • Set the cooled cake on a rack over a tray or board to catch drips.
  • Pour or spoon the marshmallow mocha glaze over the top, gently nudging it towards the edges so it drips a little down the sides.
  • Finish with pecans and set (20–30 minutes)
  • While the glaze is still tacky, sprinkle the chopped pecans over the top.
  • Leave the cake at room temperature until the glaze has set and is no longer sticky to a light touch, then slice into squares to serve.

Notes

If your kitchen is cool, the glaze will set faster; if it’s warm, give it a little longer before slicing. You can make the cake a day ahead and glaze it on the day you want to serve; just keep the unglazed cake well wrapped. Swap pecans for walnuts or mixed nuts if that’s what you have. For a stronger coffee hit, add an extra teaspoon of instant coffee to the cake and glaze. This cake keeps well in an airtight container for 2–3 days at room temperature. If the glaze gets too thick to pour, gently warm it again for a few seconds and stir until smooth.

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