Instant Pot Cake made with a BOX MIX is super moist and flavorful and much less porous than its oven-baked counterpart. Use any box cake variety of your choice! Nobody has to know this delicious cake was not made completely from scratch.
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Does the Instant Pot ever stop blowing your mind?! Seriously, you guys, who knew that a CAKE could turn out sooo deliciously when made inside of the confines of the magical little Instant Pot?
When I took my first bite of my first Instant Pot Cake (and I’ve made many in the past few weeks!), I literally could not believe what I was tasting. The cake was super moist and flavorful beyond anything I could explain in words.
After that first batch, I decided to do some cake testing. I made a cake using the same exact ingredients and measurements and in the same exact pan, except baked in the oven.
There was a notable difference! The oven-baked cake was much more porous, less moist and overall just not as tasty. I absolutely LOVE this method of making cake in the Instant Pot. I’m telling you, there is some serious magic that goes on inside that thing.
WATCH THIS QUICK VIDEO TO SEE HOW EASY IT IS TO MAKE CAKE IN THE INSTANT POT!
RECIPE NOTES
Keep these things in mind when making cake in an Instant Pot for the best possible outcome!
- Normal 8- or 9-inch round cake pans do not fit inside an Instant Pot, so you will need to get either a 6-inch round cake pan or a 7-inch round cake pan if you don’t already have one. This smaller cake turns out so cute and perfect. I made two separate layer cakes for my son’s birthday this year and people RAVED about how they looked and of course also how good they tasted.
- I love the trivet that comes with the Instant Pot because it allows me to easily lower awkward or large things down into the pot. Use your trivet to lower the batter-filled, foil-covered cake pan before cooking! There’s no need to create a “foil sling” because the trivet gets the job done!
- I believe that the CAKE button on the Instant Pot has some extra magic built into it. If your IP has this button, use it! If not, use the PRESSURE COOK button for the same amount of time.
- I tested this cake with “extras” in the batter (chocolate chips or M&M’s, for example) AND without and the cakes turned out great both ways. Do not exceed more than 1 cup of extras.
- There is no need to make a from-scratch cake recipe in the Instant Pot! Using a box mix makes it so easy and you will be blown away by how good it tastes. Make sure you have all of the ingredients listed on the box before starting!
BEST FROSTINGS TO USE FOR CAKE
Here is a list of my favorite types of frosting to slather all over cakes!
- Vanilla Buttercream
- Chocolate Buttercream
- Cream Cheese Frosting
- Chocolate Ganache Frosting
- Lemon Buttercream Frosting
ENJOY this yummy cake, you guys! Will you please stop back in and let me know how it turned out for you? I’m so excited to hear!
Instant Pot Cake (Box Mix Transformed)
Equipment
- Pressure Cooker
Ingredients
- 15.25 oz. cake mix plus any ingredients required from package
- 1 cup mix-ins examples: chocolate chips, sprinkles, M&Ms, caramel bits, optional
- 4 cups chocolate buttercream frosting or any buttercream of choice
Instructions
- Pour 1 1/2 cups water into the Instant Pot and place trivet in pot. Coat a round 6- or 7-inch cake pan with cooking spray and set aside.
- Prepare cake batter according to package directions. Divide between two same-size bowls and pour the batter from one of the bowls into the prepared pan. Cover with foil and place pan on the trivet in the Instant Pot.
- Place the cover on the pot and set timer to 35 minutes on high pressure (cake setting). It will take the IP around 6 minutes to build up pressure before it begins cooking.
- When cooking is done, let the pressure release naturally for 10 minutes then do a quick release and allow the float valve to drop.
- Remove cover and check if cake is done by sticking a toothpick into the center. Remove pan from the Instant Pot and let cool for 5 minutes. Carefully invert the cake and remove from pan. Let cool on a wire rack. Cut rounded top off cake. Repeat process with remaining batter.
- Spread frosting over the top of one cooled cake, top with the remaining cake and remaining frosting. Cover and refrigerate until ready to cut in slices and serve!
I have the Duo Plus and tried this and followed the instructions, but my cake was disappointingly still very underbaked and runny, I’m not sure if I didn’t seal them well enough with foil or? I used my cake setting too.
Weird – I’m so sorry that happened! Yes, keeping the foil tight over the cake helps and if I’ve ever had something undercooked, put it back on, set the pot to 3-5 minutes because the time that the pressure builds back up it’s still working on cooking. Frustrating when you’re looking forward to it coming out!
Have you made this recipe in one of the flower silicone molds? If you have how long to make it? Also have you made a swirl version adding melted chocolate or cocoa to part of the batter and swirling in before baking?
Those are great questions! I have not tried it personally in a silicone mold but it should work exactly the same. You shouldn’t have to change a thing. I love your idea of creating a swirl – so fun and won’t take much more than a minute or two. Please be sure to let us know how it comes out!
Did you add any water to the pot before placing the cake pan inside?
Great question. Yes, in step 1 I outline “Pour 1 1/2 cups water into the Instant Pot and place trivet in pot. Coat a round 6- or 7-inch cake pan with cooking spray and set aside.” You can’t use the pressure cooker without that addition of water. Thanks for asking!
My IP doesn’t have a cake button, what should I use?
Set timer to 35 minutes on high pressure (cake setting). It will take the IP around 6 minutes to build up pressure before it begins cooking.
Instead of metal cake pans, will a 7 ” pyrex bowl work?
Definitely! If something can be baked in the oven, it’s safe in the Instant Pot. Great idea!
So you stated that it would be ok to cook both pans at the same time…stacked. First, do I place anything inbetween them? Second, do I add more time to cook?
Since you are covering the pan with foil, each pan will be covered and they will nestle on top of each other without falling into the other as they are stacked. They will cook beautifully nestled in there and you can enjoy both!
Can you make cake bites with this recipe using different variety of cake mixes using the same cook time.
I haven’t made cake bites with this but you can substitute any box mix with this recipe. They will bake up nicely and be a great dense cake option!
I made this and the cake was very dense. It wasn’t spongy like cake should be. It seemed like it wasn’t able to rise the way it should, what did I do wrong?
That’s a great question. Baking in a pressure cooker is not going to have the same airy result in the cake. That is one of the things that I liked about making my cake in the IP, it’s dense, more rich. If you don’t know that’s the result, you might think something is wrong, but it just is a different version of a yummy cake.
How many quart IP did you use? If I have 8 inch pan that fit in my 8qt IP duo crisp is there any reason I can’t use them?
Thank you,
Beth
I use a 6qt and I’ve made this recipe many times. I’ve heard that a larger IP can require a little more time but I haven’t tested it out. There’s no reason this recipe wouldn’t work with an 8qt IP at all though. Enjoy!
My instant pot cake settings says 40min on tv people are manually setting at 55min what should I do my pot has the cake setting
I would use the cake setting if you have one!
Do you have it set to seal or vent?
When you cook with the Instant pot you want to set the valve to seal so it holds the pressure and begins to cook. Once it’s done cooking, let it naturally vent for 10 min, then release the remaining pressure. Thank you
I bought some stacking pans and would like to cook both layers at the same time. Would that work?
It should be just fine! Thanks for asking!
I made this today. I will admit, I was very skeptical about how it would turn out….I mean HOW is a full box mix going to fit into two 6×2″ pans and not overflow while cooking? Well, imagine my surprise when I took the lid off and my first cake was perfectly formed and no spillage! So in went the other half, same results. After it cooled, I cut the dome off the shorter of the 2 and took a bite of the dome. So good, better then an oven baked cake! Absolutely perfect! Thank you so much for taking the time to post this. I have been without an oven for over 7 years now and have missed cake the most I think. Again, thank you!
I’m so glad you gave it a shot – I agree it is magical but so worth it!
You say to insert toothpick and see if cake is done. If by chance it didn’t seem completely cooked through, how would you do to finish cooking it?
Hi Gail – I can’t speak from experience on this because when I used the Instant Pot, my cake came out perfectly each time I made this recipe. However, in my opinion, there are two options. You could put the cake back into the Instant Pot, set it to 0 and let the pressure continue to cook it because it’ll cook with the pressure building but you won’t need a lot of time. Or you can put it into your oven for a few minutes.