Our family has always had a soft spot for the authentic Kok Greek dessert (also known as Kokakia).Whenever Mum visits a zaxaroplasteío (Greek pastry shop) and comes home with a box of cakes, Greek Kok was always in the mix; those glossy, cream-filled, chocolate-topped beauties that vanish faster than you can say “put the kettle on.”
But trying to replicate them at home? That’s another story.
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ToggleI’ve tried a few times… and failed just as often. I’m terrible with a piping bag; it doesn’t come naturally to me. A few times the sponge tasted too eggy, and the chocolate topping never quite hit the mark. Sure, it tasted good, but it wasn’t that zaxaroplasteío taste. You know the one: lustrous, chewy, just the right level of sweetness.
After scouring recipe after recipe online, I realised they all used the same kind of ganache: melted milk chocolate and cream. Nice, but not the real deal.
So, I went down the YouTube rabbit hole. And that’s where I found this video: https://www.youtube.com/watch?v=2U6wOXUX4U0.
Credit to this guy! If you watch carefully, he uses vanilla submarine float (βανίλια υποβρύχιο) mixed with the chocolate. That’s when it clicked; this was the missing piece.
The top of a true Greek Kok dessert isn’t just a chocolate topping. It’s shiny and a bit chewy, like a soft shell that cracks just slightly before giving way to the cream beneath. The vanilla submarine gives it that bakery chew no one else seems to have caught onto.
I’ll be honest, Kokakia Greek desserts aren’t the kind of dessert you rush. They’re delicate, detailed, and need a little patience (and a light hand with the piping bag). I might be a bit heavy-handed myself, but even so, these came out absolutely delicious. Every layer, the soft syrupy sponge, creamy filling, and that nostalgic vanilla–chocolate glaze, was worth the effort. If you take your time and enjoy the process, you’ll end up with something that truly tastes like it came straight from a Greek zaxaroplasteío.
However, I’ll admit, next time, I think I’ll skip the individual Kokakia and make a whole tray of it like a cake instead. Same layers, less fuss, and far fewer near-meltdowns with the piping bag. The delicacy this dessert demands might just be too much for my heavy-handed ways… honestly, I think the Koks were judging me by the end. Warning: I’m still terrible with a piping bag… so if you’ve got that skill down, you’re already one step ahead of me. If you struggle with precision like I do, using a heavy-duty, anti-burst set like this Riccle 124-Piece Piping Bags and Tips Kit makes shaping the sponge rounds completely stress-free.
What is a Greek Kok dessert?
The Greek Kok dessert (or kokakia) is a beloved classic in Greek patisseries. In Australia, they’re sometimes referred to as Yoyos or . Imagine two airy sponge discs, brushed with syrup, sandwiched with silky vanilla pastry cream, and finished with a luscious, chewy chocolate topping.
It’s often compared to a mini Boston cream pie in the US but honestly, that doesn’t do it justice. The texture and balance of flavours are unmistakably Greek.
You’ll find Greek Kokakia desserts lined up behind the glass at every zaxaroplasteío: small, round, glossy, and almost too pretty to eat. Almost.
Watch the Video Tutorial
If you’re more of a visual cook like me, you’ll love the step-by-step video for this Kok Greek Dessert (Kokakia recipe). You’ll see exactly how that soft sponge comes together, how to get the pastry cream just right.
Watch the full Kok Greek Dessert tutorial on YouTube
What is Kokakia known for?
Kokakia are famous for being:
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- Glossy and chewy on top thanks to that iconic chocolate–vanilla submarine glaze
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- Light yet rich: soft sponge, silky cream, and just enough syrup to keep everything moist
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- A treat for all occasions, from Sunday coffee to name days and celebrations
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- Unmistakably Greek, both in flavour and flair
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- Sometimes flavoured with cocoa or dipped in extra chocolate for a Chocolate Kok twist

The Secret Ingredient to the Chocolate Kok Glossy Topping
You can find the Submarine Vanilla Float at any Greek / Euro Deli, and they look like this. It’s also what gives Chocolate Kok desserts that signature glossy shell.

Traditional Kok Greek Dessert (Kokakia)
Ingredients
- ½ cup 120 ml water
- ½ cup 100 g sugar
- Few drops lemon juice optional
- 1 cup 240 ml whole milk
- 2 egg yolks
- ¼ cup 50 g sugar
- 1½ Tbsp 12 g cornflour
- 1 tsp vanilla extract
- ½ Tbsp 7 g butter
- ¼ cup 60 ml thickened cream or heavy cream (to whip and fold in after cooling)
- 3 large eggs separated
- ½ cup 100 g caster sugar, divided
- ⅔ cup 85 g all-purpose flour
- 2 Tbsp 15 g cornflour (cornstarch)
- ½ tsp baking powder
- ½ tsp vanilla extract
- Pinch of salt
- 180 g 6 Tbsp vanilla submarine (βανίλια υποβρύχιο)
- 60 g 1 oz dark chocolate chips
Method
- Combine water and sugar in a small saucepan.
- Bring to a boil, simmer for 2 minutes, remove from heat, and let cool.
- In a saucepan, whisk yolks, sugar, and cornflour until smooth.
- Gradually add milk while whisking.
- Cook over medium heat, whisking constantly, until thick and bubbling.
- Remove from heat, stir in vanilla and butter.
- Transfer to a bowl, press cling film directly on top, and cool completely.
- Once cool, whip ¼ cup cream to soft peaks and fold gently into the custard.
- This step gives you the light, mousse-like filling you find in bakery kok.
- Preheat oven to 160°C / 320°F. Line two trays with baking paper or use professional silicone baking mats to ensure the delicate sponge rounds peel off smoothly without catching or breaking.
- Beat egg whites with a pinch of salt until soft peaks form. Gradually add half the sugar and beat to stiff peaks.
- In another bowl, beat yolks with remaining sugar and vanilla until pale and thick.
- Sift together flour, cornflour, and baking powder.
- Gently fold yolk mixture into the whites, then sift in dry ingredients and fold gently.
- Pipe or spoon 12 rounds (~6 cm wide) onto trays.
- Bake 10–12 min until lightly golden. Cool on racks.
- Warm the vanilla float gently until it begins to loosen (don’t boil).
- Add the chocolate chips and stir until fully melted and smooth.
- You should end up with a thick, shiny, almost elastic glaze; not runny.
- Let it cool slightly, then dip the tops of your kok sponges.
- Lightly brush the flat sides of all sponge discs with cooled syrup.
- Pipe or spoon pastry cream onto 6 of them.
- Dip the tops of the remaining 6 discs into the chocolate–vanilla mixture.
- Place chocolate-coated lids on top of the cream bases.
- Chill at least 1 hour to set.
- Optional: Pipe a small swirl on top with leftover topping for a final flourish.