How Many Cake Mixes For A Half Sheet Cake

Baking a cake all on your own is a big task and can eat up a lot of your time, especially if you’re making it for a bunch of people. If you’re looking for an easy peasy way to bake a delicious cake, why not try making a half sheet cake using a ready-made cake mix! In this article, we’re gonna chat about how many cake mixes you need for a half sheet cake to make sure your dessert comes out perfect every time.

No matter what you’re celebrating, everyone loves a good homemade treat. But, let’s face it, sometimes you don’t have hours to spend on measuring stuff, mixing it all up and baking it in the oven. With a box of ready-made cake mix, you can whip up amazing sweets in no time – let’s get into it!

What’s a Half Sheet Cake Anyway?


A half sheet cake is a rectangle dessert usually baked in an 8×13 inch pan. It’s super popular for all sorts of events and you can make it with loads of different cake mixes, icings, and toppings. How long it takes to bake really depends on what cake mix you pick, but it’s usually around 25 to 35 minutes.

When it comes to icing, there’s heaps to pick one. Everything from classic buttercream frosting to cream cheese or whipped topping, there’s something to suit every celebration. You can also get creative with stuff like sprinkles, candy, or edible flowers to make your half sheet cake look epic.

Regardless of what you choose to use for your half sheet cake, one thing stays the same: you’re gonna need about two cake mixes for each cake. This should give you enough batter to fill up the 8×13 inch pan without it overflowing. With two packs of mix on standby, whipping up your ideal dessert is a piece of cake!

How Many People Can A Half Sheet Cake Feed?

A half sheet cake is usually a rectangle and you can cut it into anywhere from 48 to 64 pieces, depending on how big you make each slice. Typically, people have one or two slices each. So, if you count one slice as one serving, a half sheet cake can feed up to 64 people. But if you count two slices as one serving, a half sheet cake can feed up to 32 people. Usually, a half sheet cake is 13×18 inches, but it can change depending on the type of cake. So, you’ll have to work out how many servings you’ll get based on the size of your cake.

How Many Slices Are We Talking Here?

The number of slices you can get out of a half sheet cake can really change depending on what type of cake you make. Lighter cakes like sponge cakes or chiffon cakes are usually cut into smaller pieces than denser cakes like a pound cake or carrot cake. If you’re making a lighter cake for your event, one half sheet pan might give you up to 48 servings. But for denser cakes, the same size might only give you 28-32 servings. Whatever type of cake you pick, make sure you have enough mix so you don’t run out before everyone’s had their piece!

What About Serving Size?


Now that we’ve covered the number of slices a half sheet cake can give you, let’s talk about serving sizes. When you’re thinking about portion sizes, you need to consider how big you want each slice of cake to be when you’re deciding on your ingredients and mix. If you want smaller portions, stick with lighter cakes like sponge or chiffon-based recipes. These can give you up to 48 pieces per pan. Denser cakes like pound or carrot can still be served in bigger pieces too — but you’ll probably only get 28-32 servings rather than 48. No matter what type of cake you pick, make sure you’ve got enough mix so everyone can have a piece!


Cake Size

So, you’re thinking about making a cake and you’re wondering how big it should be? How many people will get to enjoy it? Well, it all depends on the type of cake you want to make, and how much mix you’re gonna use. But, hey, let’s not forget about the cake size! Are you making a full-sized treat? If you’re thinking about round cakes, typically, they give you 12-16 pieces per pan. But if you go with square or rectangle ones, you can get up to 24 pieces. If you’re in a funky mood, try heart or scalloped shaped pans — they’re super cool for the center of your table! And for the icing, remember the thicker you put it, the less pieces you get. So, if you need to feed a lot, keep it on the thin side. No matter the shape or style, just make sure you have enough mix, so everyone gets a piece!

Half Sheet vs Full Sheet Cake: What’s the Deal?

When we talk baking, size is kinda a big deal. A half sheet cake is awesome for when you have a bunch of people coming over. But, figuring out how many cake mixes you need to whip up a full-sized half sheet cake can be a bit of a head scratcher. No worries though, we got some tips and serving sizes that’ll make it a breeze.

Usually, a box of cake mix will give you two 8” round layers, one 13”x9” rectangular layer, or 24 cupcakes. But if you need a standard 12″x18″ half sheet pan cake with four layers, you’re looking at 2 boxed mixes plus a bit from a third one if needed to fill out that fourth layer. Depending on how much cake you need per person and how fancy your decoration is, three boxes might not cut it, so plan for extra just in case.

To figure out how many people you can feed with a half sheet cake, remember that party cakes are usually cut into 1-1/2” x 2” pieces. This gives you about 70 pieces for a single layer 12″x18″ cake if you’re using all 4 layers. If you’re only using 3 layers (with no filling in between), then expect about 50-60 pieces. So, with this info, planning your cake just got a whole lot easier!

What You Need to Make a Half Sheet Cake


To make a half sheet cake, you need some basic stuff. Start with a box of your go-to cake mix, or two if you’re feeling adventurous and want to mix up the flavors. Then, you’re gonna need the usual suspects: butter, eggs, oil, water, and whatever else it says on the box. Depending on your cake, you might need some extra things like flavoring extracts or baking soda.

Once you’ve got all your ingredients, it’s time to get baking! Preheat your oven like the recipe says for the best results, and bake for about 20-25 minutes depending on how much mix you’ve got and what flavor(s) you’re going for. Remember, always check your cakes before taking them out by sticking a toothpick in them; if it comes out with wet batter on it, keep baking.

After your cake is baked, let it cool off completely before you get to the fun part – decorating and slicing it up! This can take anywhere between 30 minutes to an hour depending on how big and thick your cake is. Can’t wait for you to enjoy your delicious homemade half sheet cake!

How Much Cake Mix for a Half Sheet Cake?

When you’re making a half sheet cake, you gotta make sure you’ve got enough of everything, especially cake mix. You’re gonna need just over two boxes of the regular-sized cake mixes to make a full size 1/2 sheet cake. Depending on how much frosting and other goodies you’re adding, you might need to add a bit more mix.

With boxed cake mixes, there are loads of ways to ice your cake to make it look awesome. One way is a simple crumb coat where you spread a thin layer of frosting all over before you add the final touches. You can also add texture or use different colors or flavors for the top layer if you want.

Whatever you choose, don’t skimp on the cake mix – you want to make sure there’s enough batter in the pan so your cake bakes evenly and tastes delicious. Keep these tips in mind and you’re sure to bake a scrumptious half sheet cake!

Frequently Asked Questions

What’s the Bake Time for a Half Sheet Cake?


To figure out how long a half sheet cake needs to be in the oven, you’ve gotta think about a few things. First, what kind of frosting and baking methods you’re using can make a difference. But on average, you’re looking at about 45 minutes of baking time – and that includes pre-heating your oven and letting your cake cool down afterwards. If you’re using more than one cake mix or making a super big cake, you might need a bit more time in the oven.

What’s the Best Frosting Technique for a Half Sheet Cake?

Frosting a half sheet cake has got a lot of options. You can try all kinds of techniques and icing flavors. A pretty cool technique is the crumb coat method, which is when you spread a thin layer of buttercream or ganache on your cake, let it chill in the fridge, then add another thicker layer. And if you want to play with flavor, add citrus fruit zest like lemon or lime straight into your icing. You can also play around with different extracts like almond, coconut, or even caramel! With these techniques and ingredients, you’ll whip up a seriously tasty and impressive half sheet cake that’ll be a hit.

What Size Pans Do I Need for a Half Sheet Cake?

Choosing the right pan size for your half sheet cake is key. Usually, you’re gonna need two 9×13 inch baking pans for a standard half sheet cake. You should also preheat your oven to 350°F and use non-stick baking spray or parchment paper on the bottom of each pan before you pour in your batter. And remember, different cake fillings might need different baking temps, so always double check your recipe instructions first!

How Can I Move a Half Sheet Cake Without Messing It Up?

Moving a half sheet cake can be a bit tricky, but there are ways to make sure it gets to its destination in one piece. Depending on your cake’s decorations, you could use cardboard circles or foam core boards to keep it stable while carrying. Wrapping each cake layer in plastic before putting them together can help too. These tips will keep your cake safe from any bumps on the road. And if you want to get fancy, try some decorative trim like ribbons or greenery for an extra special touch!

How Long Does a Half Sheet Cake Last?

Storing a half sheet cake, you’ve gotta think about how long it’ll last. Generally, most cakes can stick around for 3-4 days if they’re in an airtight container. But if you’ve got a cake iced and decorated with fondant or buttercream, it might last up to 5 days. To keep your half sheet cake fresh for longer, make sure it’s covered and stored at room temperature, away from sunlight and humidity. Also, frosting techniques like crumb coating with buttercream before adding the final decorations can help keep the moisture out and maintain the cake’s texture for a longer time.


I hope this guide has answered all your half sheet cake questions. It takes a bit of time and effort, but trust me, it’s so worth it! From finding the right size pans to figuring out how to move and frost the cake, there’s a lot that goes into baking one. But now, you’re ready to hit up the store for supplies, knowing exactly what you need. With just one or two cake mixes, you’ll whip up a delicious half sheet cake in no time!


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