Key Lime Pie Bundt Cake

Delicious Key Lime Pie Bundt Cake with key lime zest, key lime juice, key lime glaze, and a sprinkle of graham crackers right on top – it’s perfect for simple summertime baking!

Summer Bundt Cake Series

We’re back again with another summer bundt cake to make your summertime that much sweeter. Easy bundt cake recipes are a go-to during times when buttercream + the summer heat don’t exactly work out all the time :). For my summer bundt cakes, all it takes is a bundt pan, and a little glaze + toppings and you’re all set for a delicious cake each and every time with zero fuss or stacking. You can check out my other summer bundt cakes in this series here.

How to make a key lime pie bundt cake

I based this recipe off of my Key Lime Pie Cake I have in my Cake Confidence cookbook. That cake, however, has a graham cracker crust and a key lime buttercream. This bundt cake has a lot of the same elements, and I loved using fresh key limes in the batter and glaze in both juice and zest form.

I haven’t quite figured out how to successfully have a graham cracker crust inside a bundt cake pan before (seeing as how the ridges are so delicate in the top of the bundt pan, and a crust needs a pretty solid flat surface to make a perfect crust). So to remedy that, and to keep things easy, I opted to just sprinkle on the graham cracker crumbs on top. If you’d like more graham cracker flavor, you can add in a 1/4 cup of graham cracker crumbs + an additional 1/4 cup of buttermilk in your cake batter.

Here’s the ingredients you’ll need for the key lime cake:

• Buttermilk
• Sour Cream
• Egg Whites
• Vegetable Oil
• Vanilla
• Key Lime Juice
• Key Lime Zest
• Flour
• White Cake Mix

Whisk everything except for the cake mix in one bowl – yep! That’s right! ONE BOWL and no stand mixer! Just whisk everything together, sift in the cake mix, fold it in gently until all the mix has been incorporated, then pour into your bundt pan and bake.

Here’s a little video of the cake batter process:

Which bundt pan can I use?

I used this one, but you can use whatever normal sized bundt pan you have! You can even split this recipe into mini bundt pans if you’d like.

How to make sure my bundt cake doesn’t stick?

It’s all about the prep! I always do a swipe of shortening (meaning, I love to spread around a little shortening with a plastic baggie over my hand in the bundt pan. This helps me get in all the bundt pan ridges & not miss any little corner that may stick!). Then I toss in a little flour and swirl it around so that the flour covers the shortening-swiped surface. You can also use bakers joy or any other non-stick baking spray.

How to make key lime glaze

This has such tasty flavor, and only has three ingredients. But, this recipe is ALL about consistency. The more liquid you add, the more thin and translucent your glaze will be. The more powdered sugar you add, the more thick your glaze will be. YOU are in charge!

Here’s the ingredients you’ll need:

• Key Lime Juice
• Key Lime Zest
• Powdered Sugar

That’s it! You’ll need WAY less juice than you think. Start out with what I have in the recipe below, then adjust the consistency from there. Stir it together with a whisk or fork in a small bowl – no stand mixer is needed. You do not need to do neat drips – you can just pour it over the top all over if you’d like. Bundt cakes are fun like that!

Tip: If it’s too thick, add in a tiny bit more juice. If it’s too thin, add in 1/2 cup more powdered sugar.

Top it off

For something extra on top, I added on a sprinkle of graham cracker and even more key lime zest on top! It really adds a lovely taste and texture and incorporates that “pie” element of graham cracker in the cake flavor profile in an easy way.

What if I can’t find key limes?

That’s okay – just use regular limes. Key limes have a different taste, though, so it may be a bit more zesty and sour with regular limes, instead of the soft floral-like sweetness of key limes. I found mine at Walmart, easily, though.

Here’s a little video of the process:

Key Lime Pie Glaze and Topping:

That’s it! I can’t wait for you to try my Key Lime Bundt Cake Recipe! Make sure to tag me @bakingwithblondie #bakingwithblondie so I can join in on all the fun on my social media accounts.

As always, Happy Baking!

xo, Mandy