I love cake but mostly because it’s a vehicle for buttercream frosting! I am deadly serious and I am not alone. Not by a long shot! The frosting is the point, ask anyone under 10. And it’s one of the reasons why I tend to favour cupcakes. I also love cupcakes because you don’t have to cut a piece and get a plate and a fork. They are single serving, so you don’t have to worry about if you cut the piece too big or too small. Plus cupcakes remind us of those childhood parties where we had to wait to stuff ourselves with brightly coloured cake that we can hold in our hands.
Whipping out a dozen cupcakes is practically a reflex for me. Making cake from scratch is pretty quick and easy, so that’s what I usually do. But there are some days I just can’t bear the idea of making a mess with measuring cups and spoons. Dealing with bowls and beaters just feels hard. Way too hard but I can almost taste that pile of buttercream. Sometimes want to be lazy. So lazy, sloth like, wishing there was a cupcake delivery service that would send me a cupcake, in fact like this cupcake ATM. But I know it wouldn’t taste good. Shop cake is gross and the icing even more gross (I mean supermarket not bakery). Even though it’s frosting I want, I still want to the cake to taste good and be lazy. Can we do it?
Enter the box or packet cake mix! Yeah, yeah, I hear you – it’s not homemade. But you can make it taste homemade? There are heaps of tips like this flinging themselves around the internet but I’m not down with those tips. Doubling the eggs? Omelette cake is what you will get, not richness. Butter instead of oil? Yep, that will add flavour but unless you double the original quantity, it will be dry and awful. Because oil is all fat and butter is approx. 75% fat and the rest is milk solids. If you want to go messing with the science of baking, you need to know how things will react or you’re going to have a bad time. There are acidity regulators in a box mix that stop the baking powder, which is two step, from entering its first process too early. Acidity will change how and when the bubbles of air form in your cake. We are going to use sour cream to hit that acidity and start the first process.
Packet cake mixes are designed to be fairly fool proof, so that they are pretty consistent, regardless of variables like how big the eggs are or if you use no fat or full fat milk. Box mixes are designed for beginner cooks and seasoned pro’s alike. In fact you may be surprised to know that many cake decorators, the kind that do wedding cakes and other highly decorated cakes use box mixes for the cakes they sell. Why? Box mixes are very predictable, even in high or low humidity and altitude (which makes a huge difference BTW) and they are easily customisable. Even from scratch bakeries tend to offer only vanilla, chocolate and a sponge. So let’s hack this!
Here in Australia, I know a lot of people are partial to the Coles vanilla or chocolate cake mixes (in the soft packet) because it’s pretty good and at only .75c a packet, it’s a bargain! As I say, it’s pretty good, it can be a little dry but we are going to fix that with a few little changes…
The original package calls for you to add:
- 2/3 cup of milk
- 2 eggs
- 40g softened butter
To make it taste homemade, instead of what it called for I added:
- 2/3 cup light sour cream – This will add richness and create a tender crumb, lots of chemistry here but trust me. Light sour cream or full fat, your call but I think light is better.
- 2 eggs
- 50g melted butter – A little extra richness but also because the block of butter has markings at 50g increments & I am being lazy
- 1 tblsp unflavored vegetable oil – This will add the moisture the mix lacks
- 1/2 tsp vanilla bean paste – For full bodied flavour but you could sub this for a whole teaspoon of any flavour you like, maybe lemon, orange or strawberry essence.
- OR 2 tblsp cocoa powder & 1 tblsp strong black coffee – If you you are using the chocolate cake mix and want it to be a richer chocolate flavour
I’ll be honest, not only did I tweak the ingredients, I didn’t follow the instructions to beat the mix with electric beaters either! I just dumped everything into a bowl and whisked it together. As I’ve said this is meant to be a foolproof cake! Just beat until there are no dry lumps. If you are making a full sized cake, pour the lot into a greased and lined 20cm or 8” round tin and cook as directed on the pack. Since I wanted cupcakes, I lined a 12 cup muffin tin with paper liners and divided the mix evenly between them. I reduced the cooking time to 17 mins, which was perfect for cupcakes. They didn’t brown much but are fully cooked. I find that packet mixes dome more in the centre, be they whole cakes or cupcakes, made as directed or hacked. Just saying, in case it affects your decorating choices.
I have tested these cupcakes on family. I made a homemade batch and a hacked cake mix batch. I told them one was a packet and to guess. No one could tell the difference and not one person said that they thought it was packet. So wins all the way round! Time saved and of course, you read my intro, I covered them in lashings of buttercream. Which cats apparently love, even thought they don’t taste sweet. Never trust a cat with a cupcake or this might happen…
The homemade icing is the kicker! People are in homemade frosting heaven and if the cake is good, they’ll never suspect your sneaky shortcut! My usual buttercream recipe is always the go to but I have so many flavour variations if you look through my other cakes and cupcakes. And here’s a fun baking fact – frosting and icing are actually different things, even though the words are often used interchangeably. Frosting is a thicker, fluffier sweet topping such as butercream and icing is more of a thin glaze like lemon drizzle cake. Now you know! If you are not into the faff of piping icing but still want a cute cupcake, stay tuned to see the unbelievably easy way I iced the sprinkle cupcakes….No piping bag and done in a few minutes! Yes, you can be that fancy when you bake for the school bake sale or that fun party or just because you want to eat frosting – I won’t tell anyone xxxx
UPDATE & MORE RECIPES: By popular demand, I have been working on more cake mix flavours and hacks! I’ll list them all for you below and I’ve included a few old recipes that also use the good old Coles 75c cake mix as a base. I’ll keep making new things and adding them here, so be sure to bookmark or pin this post or follow me on social media so you don’t miss out!
Cake Mix Recipes (New to Old)
- Glazed Donut Cupcake (Vanilla Cupcake Topped with a Mini Glazed Donut)
- Jam Donut Cupcakes (Vanilla Cupcake filled with homemade Strawberry Jam, topped with Cream, Jam & a Cinnamon Donut Hole)
- Mini Glazed Cake Donuts (With option for coloured vanilla glaze or chocolate)
- Holly Christmas Cupcakes (Chocolate Cupcake & Vanilla Frosting with Edible Holly)
- Christmas Tree Cupcakes (Vanilla Cake & Frosting in a Tree Shape)
- Orange Poppyseed Cupcakes with Cream Cheese Frosting
- Cupcakes Blacker Than Your Soul (Halloween Chocolate Cupcakes w Real Chocolate Frosting & Raspberry Jam Filling) You can omit the charcoal for great chocolate cupcakes
- Pina Colada Cupcakes (Pineapple Cake with Coconut Buttercream Frosting)
- Apple Crumble Cake (Slab Cake)
- In Case Of Emergency Coconut Cake (Slab Poke Cake with Coconut Buttercream)
- Chocolate Caramel Coma Cake with Toasted Marshmallow Topping (Poke Slab Cake)

17 Comments
Thank you much, I love coffee cake and coffee cupcakes sounds great!
Will go to Coles, grab the necessary and get stuck into this lot.
Cheers,
Mark
Glad to help! Let me know how things turned out xx
Did you use instant black coffee, ie the powder or make a cup of black coffee and take the liquid out? Does that make sense?
Hi! I have a pod coffee machine and make a short black and use a tablespoon of that but a teaspoon of instant coffee in a tablespoon of hot water works great too.
Sorry I know this is an old pos but did you use sour cream as well as the milk?
Hi! I used the sour cream in place of the milk. Happy baking!
I followed the directions and just added two blobs of sour cream and the results were so so good!! Thank you!!
Oh I’m so glad! Happy Baking 🙂
I was going down a deep internet rabbit hole, looking for Coles packet mix hacks…and I’m so glad I stumbled onto your blog! Fabulous recipes (and hacks) for time-poor mums like me, thank you!
Ah yes, it’s easy to fall into a google rabbit hole! So thrilled you found me along the way. I am all about saving time in the kitchen! From my cheat soups to my very easy carrot cake. Hope to see you soon and happy baking xxx
Hi Nicola, Just wanted to update you and let you know that I’ve added a list of recipes that use the Coles cake mix and will be adding more as I make them xx
I love this Sarah! I know you’ve added 2 more recipes with this super cheap packet, will you have any more ideas in future? Excited to make this and see if anyone can tell they’re cheap as chips to make!
Hi Amy, I read your comment and got busy updating this post! I’ve added all my cake mix recipes (past and more recent makes) for easy reference. I am planning on making more, so stay tuned! And I can guarantee no one will guess your cake mix secret but you have to make sure your frosting game is strong – no premade icing can rival a well made buttercream xxx
Got my first batch of Coles sour cream cupcakes in the oven. First time vanilla bean paste user (usually too stingey) – just licking out the bowl was heaven. Cannot wait for final product!
Oh yay! I hoope they turned out perfectly for you.
Happy baking!
Hi! Tried ou your suggestions and made a chocolate cake. So easy and it’s definitely tasty. But found cake is quite crumbly? I don’t get the science of baking so not sure why or if it’s supposed to be like that? Wanting to make my sons birthday cake and hoping it will hold together a bit better. Thanks so much
The cake mixes are quite soft and crumbly, probably due to a high sugar content. Have you tried letting the cake cool in the pan before turning out? For a full size layer cake, freezing (wrapped in several layers of glad wrap) before cutting and icing can help. Once iced, defrost in the fridge. I hope that helps!
Happy baking xx