Name: Chocolate Brownie Cake
Prep time: 15 min
Cook time: 55 min
Total time: 70 min
Ingredients: 1 box chocolate cake mix; 1 box fudge brownie mix; 4 large eggs; 1+1/4 cup water; 1 cup oil; 1 cup heavy whipping cream; 12 oz semi-sweet chocolate morsels

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Last Thursday, I’ll admit, I was standing in front of the pantry hoping for inspiration, knowing full well I needed a serious “wow” dessert. But here’s the thing: I wasn’t about to turn my kitchen into a chocolate-covered disaster zone (been there, scrubbed that). You ever have those days where you want something special for your people, but also easy—plus, maybe sneak in a truce for the ever-present cake versus brownie showdown? Well, if you’d glanced in my window, you’d have caught me with a secret grin, because I knew something good was coming: Chocolate Brownie Bundt Cake. And seriously, nothing flips a blah Thursday into something festive quite like the scent of chocolate swirling through the whole house.

This cake is everything I love about comfort baking. It’s light enough to nibble with your afternoon coffee (or midnight tea—I won’t judge), but real talk, it’s the fudgy brownie bits scattered inside that really steal the spotlight. Every slice? It’s basically a treasure hunt for those gooey, chocolatey pockets tucked away like little surprises. And my favorite part? By using two trusty boxed mixes, you dodge any fussy from-scratch steps, and you still get to unveil a dramatic, ganache-coated beauty that looks like it strolled in from some fancy bakery.

Why You’ll Love It

Two-in-one magic: It’s cake and brownies—no more choosing sides at dessert time!
No-fuss process: We’re talking whisking, pouring, topping—zero complicated steps or special equipment.
Bakery-worthy vibes: That Bundt pan does all the styling for you, so every slice looks like you spent hours (shhh, your secret’s safe).
Make-ahead friendly: This keeps moist and beautiful, so you can bake ahead for parties, picky relatives, or surprise guests.
Dreamy leftovers: The ganache stays luscious and soft enough to make every next-day nibble feel like a celebration.

Ingredient Notes

Alright, confession—if there’s a shortcut that tastes amazing, I’m going to take it, especially for something chocolatey. Here’s what you’ll need for this beauty:

Chocolate Cake Mix (1 box): Devil’s food, dark chocolate, classic—whichever one makes you happiest. No judgment!
Brownie Mix (1 box): Any family-size (18-20 oz) box will work. Fudge style or chewy, both are delish.
Eggs (4 large): For structure and that soft, springy crumb. Go ahead and use them straight from the fridge—no need for anything fancy.
Water & Oil: Just enough to keep things moist and luscious. Canola, vegetable, or even light olive oil are all fair game.
Heavy Whipping Cream (1 cup): This is your ticket to a swoon-worthy ganache. If you’re in a pinch, whole milk can sub in, but cream is the key for that rich finish.
Semi-sweet Chocolate Chips (12 oz): Melt down into a glossy, pourable ganache that drips in all the right ways. Prefer dark chocolate? Grab those chips and use a splash extra cream if it thickens up too much.

Substitution Tips: Only have devil’s food cake mix? Use it. Want more texture? Toss in a handful of mini chips, or ripple a little peanut butter through the batter (it’ll get you lots of new fans, trust me!). If you’re feeling playful, a sprinkle of cinnamon or espresso powder will totally change the vibe without extra work.

Directions

Preheat your oven to 350°F (the old standby for almost every boxed mix). Grab your 10–12 cup Bundt pan and give it some love—spray with nonstick or do an old-school butter-and-flour coat. My pan’s got some serious grooves, so I’ll sometimes use parchment strips to help with cleanup (no shame in wanting an easy release).
In a very big bowl (trust me, you want room to move), whisk together that chocolate cake mix and brownie mix until blended and lump-free. This is your upper body warmup for the day.
Add eggs, water, and oil, and whisk it all together. Or use your hand mixer if you’d rather not build biceps. Go for 1-2 minutes until your batter’s glossy and thick. A few lumps are fine—seriously, stop before you overwork it.
Scrape all that chocolaty goodness into your prepped Bundt pan. Tap gently on the counter to pop any sneaky air bubbles. It’ll look thick, almost like brownie batter (and that’s a very good thing).
Slide onto the middle oven rack and bake for 50 to 55 minutes. Check at 50 with a toothpick—you want moist crumbs sticking (not raw batter), and the cake should feel just set and springy.
Let your cake cool in the pan for a solid 5 minutes (don’t get impatient!). Run a thin knife around the edges if you’re nervous, then invert onto a wire rack to finish cooling. Wait at least 30 minutes before the ganache goes on—otherwise, you’ll have a chocolate slip-and-slide.
For the ganache: Warm the cream in a microwave-safe bowl just until steaming—about 2 minutes. Dump the chocolate chips on top, don’t stir, and just…wait 5 minutes. Then whisk it up until smooth and shiny. If it gets stubborn or seems thick, microwave for another 10 seconds and stir.
Once your cake is cool, transfer it to your prettiest platter. Slowly pour on that ganache and let it cascade over the edges—don’t rush it, and let some drips be dramatic! Feeling extra? Sprinkle with shavings or a little flaky sea salt.

Flavor Twists & Variations

Espresso Upgrade: Whisk in 1 teaspoon instant espresso powder with your dry mix. It deepens the chocolate so much, and gives just a whisper of coffee shop chic.
Nutty Dream: Stir in a half cup of toasted walnuts or pecans before baking for that cozy, nostalgic crunch.
Minty-Fresh: Swirl a few drops of peppermint extract into your ganache. If Andes candies were your childhood jam, you’ll love it.
Berry Swirl: Serve slices with a drizzle of raspberry sauce and a few fresh berries for a dessert that feels extra special (and pretty!).
Salted Caramel Glaze: Spoon on some warm caramel along with the ganache, then finish with a sprinkle of sea salt flakes. Fancy, but secretly so easy.

Storage & Reheating Tips

So, will there be leftovers? Maybe, maybe not! If you happen to have a few slices left behind (rare in this house), pop them in an airtight container on the counter for up to three days. Got a warm kitchen? The fridge is your friend. Just let a cold slice sit for 15 minutes before serving so the ganache gets luxuriously soft again. For longer stashing, wrap well in both plastic wrap and foil, then slide into the freezer—your brownie-cake treasures will keep for up to three months! Thaw overnight in the fridge, and if you want that “just baked” feeling, microwave a slice for a few quick seconds (it brings back that magical, melty charm every time).

FAQs

Can I use dark chocolate chips in the ganache? You bet! The flavor is bolder and a little less sweet. Just splash in a bit more cream if it thickens up too much.

My cake stuck to the pan—help! Oh, I’ve been there and it’s always a heart-stopper. Run a thin knife or offset spatula along the edge. Invert the pan over your serving plate, and give it gentle encouraging taps. Usually, patience and gravity do the trick. For stubborn pans, those parchment strips help—no one will know but you.

Can I make this gluten-free? Yup! Just grab a good gluten-free boxed cake mix and brownie mix. The bake will be a bit denser but every bit as craveable.

What about a regular pan instead of Bundt? Absolutely, a 9×13” works. Just check it at 35 minutes since it’ll bake faster when it’s not so deep. Your trusty toothpick test will tell you if it’s ready.

Conclusion

There’s just something about gathering the family around a big, beautiful cake that feels both nostalgic and exciting. With this Chocolate Brownie Bundt Cake, you get all the wow-factor and all the warm, cozy comfort—without any complicated steps or wild ingredients. It’s equally perfect for Tuesday night treats, last-minute birthday parties, or that potluck where you want folks to be asking for your recipe. Give this one a go, and if you try a new twist or have a fun baking story, pop down to the comments and share! I love hearing about all the ways these recipes become part of your cozy kitchen moments. And if you catch me scraping the last bit of ganache from the plate? Just know it’s for research (okay, and a little personal joy, too!).