Desserts

Islak Kek (Turkish Wet Cake) Recipe

Islak kek (Turkish wet cake) is a rich chocolate sponge soaked in a warm cocoa sauce made with milk, sugar and oil. Dense, fudgy, and drenched in dark chocolate syrup.

The sauce is what makes or breaks this cake. You pour it over while both the cake and sauce are still warm, and the sponge drinks it up from the top down. If the sauce is too hot it runs straight through and pools at the bottom. If it’s too cold it sits on top and doesn’t soak in. Lukewarm is where you want it, and the cake needs 10 minutes out of the oven before you pour so it’s firm enough to absorb without falling apart.

I dissolve the sugar in the milk properly before adding the cocoa and oil to the sauce. If the sugar is still grainy when the cocoa goes in, it never fully dissolves and you get a gritty coating instead of a smooth, glossy drench. Take an extra minute stirring until you can’t feel any grains on the back of the spoon, then add the rest.

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Islak Kek (Turkish Wet Cake) Ingredients

For the Cake

3 medium eggs
200g (7oz) caster sugar
1 sachet vanilla sugar (or 1 tsp vanilla extract)
200ml (7fl oz) milk
200ml (7fl oz) vegetable oil
3 tbsp cocoa powder
1 tsp baking powder
250g (9oz) plain flour
Butter, for greasing

For the Chocolate Sauce

300ml (10fl oz) lukewarm milk
100g (4oz) caster sugar
100ml (3.5fl oz) vegetable oil
3 heaped tbsp cocoa powder

How To Make Islak Kek (Turkish Wet Cake)

Make the sauce first: Heat the 300ml milk in a saucepan over medium heat until warm. Add the sugar and stir continuously until it dissolves completely. You should not feel any grains when you rub a drop between your fingers. Add the oil and cocoa powder, whisk until smooth, then take off the heat and set aside to cool to lukewarm.
Whisk the eggs and sugar: Put the eggs, caster sugar and vanilla sugar in a large bowl. Whisk with an electric mixer until pale, thick and creamy, about 4-5 minutes on high speed.
Add the wet ingredients: Pour in the milk and vegetable oil. Whisk on medium speed until combined and smooth.
Add the dry ingredients: Sift the flour, cocoa powder and baking powder into the bowl. Whisk on low speed until just combined with no dry patches. Do not over-mix.
Bake the cake: Grease a 29x29cm (11x11in) ovenproof dish generously with butter. Pour in the batter and spread it level. Bake at 175°C (345°F/Gas Mark 4) with top and bottom heat for 30-35 minutes until a skewer in the centre comes out clean.
Soak the cake: Remove from the oven and leave in the dish for 10 minutes. Slice the cake into squares while still in the dish. Pour the entire sauce slowly and evenly over the sliced cake. Let it rest for at least 2 hours at room temperature so the sponge absorbs the sauce fully before serving.

Recipe Tips

Dissolve the sugar in the milk completely. This is the most common mistake. If the sugar is still grainy when the cocoa goes in, the sauce tastes gritty on the finished cake. Stir until you can’t feel any grains at all.

Slice before you pour the sauce. Cutting the cake into squares first means the sauce soaks into the sides and the bottom of every piece, not just the top. Whole, uncut cakes absorb unevenly and the centre stays dry.

Let the cake rest the full 2 hours. It looks done after 30 minutes but the inside is still dry. Two hours gives the sponge time to pull the sauce all the way through. The texture gets better the longer it sits.

Use a glass ovenproof dish. Glass retains heat evenly and lets you see how much sauce has soaked through from the sides. Metal tins work but cool faster and the cake absorbs less evenly.

The sauce should be lukewarm, not hot. Hot sauce makes the cake crumble and turns it into a muddy mess. If the sauce cooled too much, warm it gently for 20 seconds before pouring.

What To Serve With Islak Kek

A scoop of vanilla ice cream on top of a warm square is the best pairing. The cold ice cream against the soaked chocolate cake is hard to beat.

A glass of cold milk or a cup of Turkish coffee both work alongside it. Keep it simple, the cake is rich enough on its own.

How To Store Islak Kek

Fridge

Cover the dish with clingfilm and store in the fridge for up to 4 days. The cake actually improves after a night in the fridge as it continues absorbing sauce. Serve cold or bring to room temperature for 20 minutes.

Reheat

Warm individual squares in the microwave for 15-20 seconds. The texture goes from fudgy to almost pudding-like when warmed. The oven dries it out, so the microwave is the better choice here.

Freeze

Wrap individual squares tightly in clingfilm and freeze for up to 1 month. Thaw in the fridge overnight. The texture stays dense and fudgy after thawing.

Islak Kek (Turkish Wet Cake) Nutrition Facts

Per serving (1 of 12): Calories: 385kcal, Protein: 5g, Fat: 22g, Carbohydrates: 44g, Sugar: 26g, Sodium: 75mg. Estimated. May vary based on ingredients and cooking methods.

FAQs

Can I use drinking chocolate instead of cocoa powder?

No. Drinking chocolate already contains sugar and milk powder, which throws off the balance. Pure cocoa powder gives the deep, bitter chocolate flavour you need in both the cake and the sauce.

Can I make this in a round tin instead of a square dish?

Yes, a 25cm (10in) round tin works. The cake will be slightly thicker so add 5-10 minutes to the baking time and check with a skewer. The sauce soaks in the same way.

Can I add nuts or fruit to the cake?

Chopped walnuts or hazelnuts scattered over the sauce before it soaks in add a good crunch. Avoid fruit, the moisture makes the already wet cake too soggy.