Outrageously Buttery Crumb Cake: 1 Amazing Recipe

By chef sofia on August 8, 2025

Outrageously Buttery Crumb Cake

Hey there, baking buddies! Adam here from NoobRecipes, ready to whisk you away to the ’70s with a recipe that’s pure, unadulterated comfort: the Outrageously Buttery Crumb Cake. Seriously, this cake is like a warm hug from the past, packed with that rich, buttery flavor we all crave and topped with a mountain of sweet, cinnamon-spiced crumbs. We’re talking a super moist cake base crowned with the ultimate crunchy topping. And the best part? It’s ridiculously easy, perfect for anyone dipping their toes into baking or just looking for a seriously delicious, no-fuss treat. Let’s make something amazing together!

Outrageously Buttery Crumb Cake - detail 1

Why You’ll Love This Outrageously Buttery Crumb Cake

Seriously, who doesn’t love a good crumb cake? This one is a total winner for so many reasons:

  • It’s incredibly buttery – like, melt-in-your-mouth, couldn’t-be-any-better buttery.
  • That crumb topping? It’s seriously generous and oh-so-cinnamony.
  • The cake itself stays wonderfully moist, no dry crumbs here!
  • It’s so easy to make, you’ll be shocked.
  • Perfect for beginners or anyone who just wants a stress-free baking win.
  • It’s a classic retro dessert that brings all the nostalgic vibes.

Gather Your Ingredients for Outrageously Buttery Crumb Cake

Alright, let’s get our baking station ready! For this outrageously buttery crumb cake, we’re keeping it simple with ingredients you probably already have or can easily grab. You’ll need one box (that’s about 15.25 ounces) of your favorite yellow cake mix – the kind that promises a tender crumb. For the cake base, we’ll also grab 2/3 cup of water, 3 large eggs, and 1/2 cup of softened butter. Make sure that butter is nicely softened, not melted, for the best texture!

Now, for that incredible crumb topping, which is really the star of the show, we’ll need 1 1/3 cups of packed brown sugar – I like using dark brown sugar for a richer flavor, but light works great too! Then, we’ll add 1 tablespoon of ground cinnamon for that cozy warmth, 1 tablespoon of vanilla extract for a little something extra, and a generous 4 1/2 cups of all-purpose flour. The real magic happens with 1 1/2 cups of cold butter, cubed. Keeping this butter cold is key to getting those perfect crumbly bits!

Step-by-Step Guide to Making Your Outrageously Buttery Crumb Cake

Alright, let’s get this baking party started! Making this outrageously buttery crumb cake is super straightforward, even with a couple of baking steps. We’re going to break it down so it’s easy-peasy.

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Preparing the Cake Base

First things first, let’s get that oven preheated to 350°F (that’s 175°C). While it’s warming up, grab your 12×18-inch jellyroll pan and give it a good grease. You want to make sure nothing sticks, right? Now, for the cake batter itself, it’s almost ridiculously simple. Just dump your yellow cake mix into a mixing bowl. Add the water, the 3 large eggs, and that 1/2 cup of softened butter. Now, grab your mixer – whether it’s a hand mixer or a stand mixer – and beat it all together on medium speed for about 2 minutes. You’re looking for a smooth, lovely batter. Pour all of that goodness evenly into your prepared jellyroll pan. We’re not baking it all the way just yet!

Creating the Irresistible Crumb Topping

Okay, time for the best part – the crumbs! In a big bowl, combine 1 1/3 cups of packed brown sugar, 1 tablespoon of ground cinnamon, 1 tablespoon of vanilla extract, and all 4 1/2 cups of your all-purpose flour. Give that a quick whisk to get it all mixed up. Now’s the fun part: adding the 1 1/2 cups of cold butter, cubed. Use your fingers – yes, your fingers are the best tool here! – to work the cold butter into the dry ingredients. Keep going until you get lovely medium-sized crumbs. Don’t overwork it; we want distinct little buttery bits.

Outrageously Buttery Crumb Cake - detail 2

Assembling and Baking Your Outrageously Buttery Crumb Cake

Once your cake base has baked for about 15–17 minutes, it should look lightly golden around the edges but still a little soft in the middle. That’s exactly what we want! Carefully take it out of the oven. Now, grab about three-quarters of your prepared crumb topping and sprinkle it evenly all over the top of the cake. Just save the rest of those glorious crumbs for later! Pop the pan back into the oven and bake for another 10–12 minutes. You’re looking for those crumbs to turn a beautiful golden brown and for the cake to be fully baked through. Once it’s out, sprinkle the remaining reserved crumbs over the hot cake. It’ll look amazing! Let it cool completely in the pan before you slice it up. Trust me, waiting is the hardest part, but it’s worth it!

Tips for Baking the Perfect Outrageously Buttery Crumb Cake

Alright, let’s make sure your Outrageously Buttery Crumb Cake is absolutely perfect, every single time! Here are a few little secrets from my kitchen to yours:

  • Keep that crumb butter COLD: Seriously, when you’re making the crumb topping, make sure that butter is super cold and cubed. It’s how you get those lovely, distinct crumbly bits instead of a greasy mess.
  • Don’t overbake the first round: That first bake is just to set the cake. You want the edges golden but the center still a little soft. This helps the crumbs stick and the cake finish baking beautifully.
  • Cool it completely: I know, I know, it smells amazing and you want to dive in! But letting it cool completely in the pan is crucial. It allows the cake to firm up and makes slicing so much cleaner. No one wants a crumbly mess (unless it’s the crumb topping, of course!).
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Variations for Your Outrageously Buttery Crumb Cake

Want to jazz up this classic Outrageously Buttery Crumb Cake a little? It’s already amazing, but here are a couple of easy ways to make it your own! Try adding just a tiny pinch of nutmeg to the crumb topping mixture along with the cinnamon – it adds a lovely warmth. Or, swap out the vanilla extract for almond extract in the crumbs for a different, slightly nutty flavor. For an extra bit of sparkle and crunch, sprinkle a little coarse sugar, like turbinado or sanding sugar, over the crumbs right before the second bake. So good!

This Outrageously Buttery Crumb Cake is just begging to be served with a hot cup of coffee or a nice cup of tea, don’t you think? It’s the ultimate breakfast treat or afternoon pick-me-up! If you happen to have any leftovers (which is rare in my house!), just store them in an airtight container at room temperature. It should stay fresh for about 2-3 days. To bring back that lovely tender texture, you can gently warm a slice in the microwave for about 10-15 seconds. For more delicious baking inspiration, check out our dessert cakes!

Frequently Asked Questions about Outrageously Buttery Crumb Cake

Got questions about whipping up this amazing Outrageously Buttery Crumb Cake? I’ve got you covered!

Q1: Can I use a different pan size?

Absolutely! If you don’t have a jellyroll pan, a 13×9-inch baking dish works perfectly. Just remember to adjust the first baking time to about 25–27 minutes since it’s a deeper pan. It’ll still be just as delicious!

Q2: Can I make this crumb cake ahead of time?

Yes! This cake is actually great for making ahead. Once it’s completely cooled, store it in an airtight container at room temperature. The flavors even meld together nicely overnight, making it perfect for brunch or a grab-and-go breakfast. For more tips on making delicious baked goods, you might find our savory zucchini cheddar quick bread helpful.

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Q3: How do I know if my crumb cake is fully baked?

You’ll know your Outrageously Buttery Crumb Cake is ready when the crumbs on top are a beautiful golden brown. You can also insert a toothpick into the center of the cake part (try to avoid hitting a crumb clump!). If it comes out with just a few moist crumbs attached, it’s done. You don’t want it to come out completely clean, as that can mean it’s overbaked and will be dry. For more baking science, you can explore resources on butter properties in baking.

Outrageously Buttery Crumb Cake - detail 3

Estimated Nutritional Information

Just a friendly heads-up from NoobRecipes: the nutritional info for this Outrageously Buttery Crumb Cake is an estimate. It can totally vary depending on the specific brands of ingredients you use and how you slice it. Happy baking!

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Outrageously Buttery Crumb Cake

Outrageously Buttery Crumb Cake: 1 Amazing Recipe


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  • Author: chefsofia
  • Total Time: 1 hr 45 min
  • Yield: 16 servings
  • Diet: Vegetarian

Description

This retro crumb cake from the ’70s is packed with rich buttery flavor and topped with heaps of cinnamon-sweet crumbs. Soft, moist cake underneath and the ultimate crunchy topping on top—this one’s pure comfort food.


Ingredients

  • 1 box (15.25 oz) yellow cake mix
  • 2/3 cup water
  • 3 large eggs
  • 1/2 cup softened butter
  • 1 1/3 cups packed brown sugar
  • 1 tbsp ground cinnamon
  • 1 tbsp vanilla extract
  • 4 1/2 cups all-purpose flour
  • 1 1/2 cups cold butter, cubed
  • 1 tbsp powdered sugar, for dusting (optional)


Instructions

  1. Heat oven to 350°F. Grease a 12×18-inch jellyroll pan.
  2. Make the cake base: In a mixing bowl, beat cake mix, water, eggs, and softened butter for 2 min on medium speed until smooth. Pour into the pan.
  3. Bake for 15–17 min, until edges are light golden but center is slightly underbaked.
  4. Make crumb topping: In a big bowl, mix brown sugar, cinnamon, vanilla, and flour. Work in the cold butter with your fingers until medium-sized crumbs form.
  5. Add crumbs: Take cake out of oven, sprinkle 3/4 of the crumb mixture evenly over top. Save the rest for later.
  6. Bake again for 10–12 min until crumbs are golden and cake is fully baked.
  7. Finish: Sprinkle remaining crumbs over top, let cool completely, and dust with powdered sugar if you like.

Notes

  • If you prefer a smaller cake, bake it in a 13×9-inch dish and adjust the first baking time to 25–27 minutes.
  • Perfect with a hot cup of coffee or tea!
  • Prep Time: 15 min
  • Cook Time: 30 min
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

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