Free Recipe · Chocolate Sheet Cake
A super-easy chocolate cake that stays moist for days, feeds a crowd and slices into perfect even squares.
This moistest chocolate cake is mixed in the Thermomix, baked for 40 minutes and ready in about 1 hour 10 minutes, and it serves 12.
If you're looking for a super-easy cake recipe in your Thermomix that stays moist and fresh for days and will feed a crowd, then this is your recipe! Whip up the batter in next to no time, then bake it in a Deep Sheet Cake Pan with our Reusable Sheet Cake Liner for a huge, rectangular cake that slices into even squares like a dream. Perfect for kids' parties, morning teas, lunch boxes, you name it. In fact, it might just be my favourite way to bake a cake!
A sheet cake is the easy-going, crowd-pleaser of the cake world, big, simple and perfect for sharing. Baked flat in a large rectangular pan, it's all about easy slicing and serving, making it the go-to choice for parties, BBQs and backyard get-togethers. No fancy layers or towering decorations here, just a cosy blanket of frosting and a whole lot of flavour in every bite. Just grab a square and dig in.
Meet the products
The duo behind a perfect sheet cake
Deep Sheet Cake Pan
A heavy-duty, double non-stick pan sized perfectly for a big rectangular sheet cake.
Shop now →
Reusable Sheet Cake Liner
Drops straight into the pan for the easiest cake release, no baking paper required.
Shop now →Watch
Our reusable liners in action
Come cook with us and see just how easily the cake lifts and flips out of the liner.
Let's Bake
Moistest Chocolate Cake (for Thermomix)
Serves 12 · Thermomix or thermo cooker · about 1 hour 10 minutes
Method
Preheat oven to 175C fan forced.
Place buttermilk, coffee, oil, eggs and vanilla in the mixing bowl, mix 10 sec / speed 4.
Add flour, cocoa, sugar, instant coffee powder, bicarbonate of soda, baking powder and salt, mix 20 sec / speed 3. Combine any remaining loose flour using a Thermo Spoon Spatula (this is the best spatula!).
Pour into a lined Deep Sheet Cake Pan (the easiest way to line is to use our Reusable Sheet Cake Liner). Bake for 40 minutes, or until a skewer inserted comes out clean.
Allow to cool in the tin for 15 minutes, then lift out of the tin and pull back the liner. The easiest way to remove the liner completely is to use a large chopping board to 'flip' the cake over, see exactly how I do it in the video above.
To finish
Allow to cool completely before serving, or ice with my delicious Chocolate Cream Cheese Frosting (free recipe here!).
This cake stays moist and fresh for days, so store any leftovers in an airtight container. It also freezes beautifully in squares, ready to pull out whenever you need them.
Frequently Asked Questions
Can I freeze this chocolate cake?
Yes, it freezes beautifully in squares, ready to pull out whenever you need them. Leftovers also keep well in an airtight container, as the cake stays moist and fresh for days.
What pan do I need to bake this sheet cake?
Bake it in a Deep Sheet Cake Pan lined with our Reusable Sheet Cake Liner, which means no greasing and no baking paper.
What frosting goes with this chocolate cake?
Ice it with my Chocolate Cream Cheese Frosting, another free recipe. Either way, allow the cake to cool completely first.
Is this chocolate cake nut free?
Yes, this recipe is nut free, soy free and vegetarian as written.
Which machines does this recipe suit?
The batter can be mixed in any Thermomix or thermo cooker, then the cake is baked in the oven at 175C fan forced.
Want to get more from your Thermomix?
No lining, no greasing, no fuss. Our Reusable Sheet Cake Liner drops straight into the pan and wipes clean, batch after batch, so every sheet cake slides out perfectly.







