Oh, honey, let me tell you about my Brimstone Brownies – the most devilishly delicious treat to ever come out of my oven! That rich, fudgy brownie base swirled with bright red cheesecake? It’s like a little slice of heaven… with a kick. I’ve been making these sinful squares for every Halloween and potluck since my grandkids were knee-high to a grasshopper. There’s just something magical about how that tart cream cheese swirl cuts through the dark chocolate – plus the dramatic red-and-black layers always get folks talking! I’ll never forget little Tommy’s face when he first saw them: “Grandma Jo, did you bake these with real fire?” Bless his heart. Now pull up a chair, darling, and let me show you how to make these showstopping Brimstone Brownies that’ll have everyone begging for the recipe.

Table of Contents
Table of Contents
Why You’ll Love These Brimstone Brownies
Listen here, sugar – these aren’t your average brownies. Here’s why they’ll become your new obsession:
- Bold flavors that dance – The deep chocolate base and tangy cheesecake swirl play off each other like best friends at a square dance
- Easy as pie (but better!) – Starts with a box mix, so even novice bakers can work their magic
- Showstopping looks – That fiery red swirl against the dark batter? Pure kitchen witchcraft, I tell ya
- Crowd-pleasing power – Always the first dessert to disappear at potlucks and parties
Trust me – one bite of these beauties, and you’ll be hooked faster than a hound dog on a scent trail!
Ingredients for Brimstone Brownies
Now don’t you go skimping on quality – these simple ingredients make all the difference between “meh” and “magnificent”!

For the Brownie Batter
- 1 box (18-20 oz) brownie mix (plus the oil, water, and egg it calls for)
- 1-2 teaspoons black food coloring (gel works best for deep color)
- 1/2 cup semi-sweet chocolate chips (the mini ones distribute better, but regular work fine)
For That Devilish Red Swirl
- 8 oz cream cheese, softened (leave it out for 30 minutes – no cheating!)
- 1/2 cup powdered sugar, packed (don’t just scoop – press it into the cup)
- 1 large egg (room temperature, please)
- 1 teaspoon pure vanilla extract (imitation just won’t cut it)
- 1-2 teaspoons red food coloring (more if you want that fire-engine red)
Ingredient Substitutions & Notes
In a pinch? Try plain Greek yogurt instead of cream cheese (though the texture changes). No black food coloring? Mix 2 tbsp cocoa powder into the batter. And sugar, whatever you do – don’t overbeat that cheesecake layer! Gentle folds keep those gorgeous swirls intact.
How to Make Brimstone Brownies
Alright, darlin’, roll up those sleeves – it’s time to work some kitchen magic! Don’t let the fancy looks fool you; these Brimstone Brownies come together quicker than a jackrabbit in July. Just follow my lead, and you’ll have a pan of pure temptation ready before you know it.

Preparing the Brownie Batter
First things first – preheat that oven to 350°F while you get started. Now, mix your brownie batter according to the package directions, but here’s my secret: add the black food coloring gradually until you get that deep, dark abyss color. Don’t go stirring like you’re churning butter – just mix until combined! Line your 8×8 pan with foil or parchment (trust me, you’ll thank me later when these beauties pop right out).
Creating the Red Cheesecake Swirl
Beat that softened cream cheese until it’s smooth as silk – no lumps allowed! Add powdered sugar, egg, and vanilla, mixing until it’s all lovey-dovey. Now comes the fun part: splash in that red food coloring until it’s as vibrant as a fire truck. Gently spoon this over your first brownie layer like you’re painting the town red – no mixing, just pretty swirls!
Baking and Slicing Brimstone Brownies
Pop that pan in the oven for 33-35 minutes – you’ll know they’re done when the edges pull away slightly and a toothpick comes out with just a few crumbs. Here’s where patience pays off: let them cool completely (I know, it’s torture!). When ready to serve, run your knife under hot water and wipe dry between cuts for picture-perfect slices that’ll make your guests swoon.
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Devilishly Delicious Brimstone Brownies in 35 Minutes
Deliciously dark and devilish brownies with a rich red cheesecake swirl.
- Total Time: 50 minutes
- Yield: 9 brownies 1x
Ingredients
- 1 box of Brownie Mix (includes 1 egg, water, and oil)
- 8 oz cream cheese, softened
- 1 egg
- 1/2 cup powdered sugar
- 1 teaspoon vanilla
- 1/2 cup semi-sweet or dark chocolate chips
- Red food coloring
- Black food coloring
Instructions
- Preheat oven to 350°F.
- Mix the brownie batter as per package instructions.
- Tint the brownie batter with black food coloring.
- Line an 8×8 pan with foil or parchment paper and spray with cooking oil.
- Cream together cream cheese and powdered sugar with an electric mixer.
- Add egg and vanilla to the cream cheese mixture and beat until smooth.
- Add red food coloring to achieve a bright red color.
- Layer two-thirds of the brownie batter into the pan.
- Sprinkle with 1/2 cup chocolate chips.
- Gently spoon red cheesecake batter over the chocolate chips.
- Use a spatula to spread the cheesecake batter without mixing it into the brownie batter.
- Pour the remaining brownie batter over the red layer, covering it as much as possible.
- Bake for 33-35 minutes until the center is set and a toothpick comes out with a few crumbs.
- Let cool completely before cutting with a hot clean knife.
- Serve as is or with whipped cream.
Notes
- Use a hot knife for clean slices.
- Store leftovers in an airtight container in the fridge.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 1 brownie
- Calories: 320
- Sugar: 25g
- Sodium: 180mg
- Fat: 18g
- Saturated Fat: 8g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 2g
- Protein: 4g
- Cholesterol: 55mg
Tips for Perfect Brimstone Brownies
Now listen close, sugar – these little tricks make all the difference between good brownies and knock-your-socks-off Brimstone Brownies:

- Temperature matters! That cream cheese and egg must be room temp – cold ingredients make lumpy swirls that’ll break your heart
- Swirl with finesse – Use a butter knife to gently marble the layers without fully mixing them. Think “elegant ribbons,” not “mud puddle”
- Patience is a virtue – Let them cool completely before slicing (I pop mine in the fridge for 30 minutes if I’m in a hurry)
- The knife knows best – A hot, clean blade gives you those crisp edges that’ll make your brownies look bakery-perfect
Follow these, and your Brimstone Brownies will be the talk of the town – I guarantee it!
Serving and Storing Brimstone Brownies
Oh, these devilish delights deserve a proper presentation! I love serving my Brimstone Brownies with a dollop of fresh whipped cream – the white against that fiery red swirl is just heavenly. Now listen close: store any leftovers (if you’re lucky enough to have any!) in an airtight container in the fridge. They’ll keep their magic for about 4 days – though they never last that long in my house! One word of warning, sugar: don’t bother reheating them. That cheesecake swirl gets fussy when warmed up. Room temperature is just perfect for enjoying every sinful bite.
Brimstone Brownies Nutritional Information
Now sugar, I’ll be honest – these ain’t health food! But everything in moderation, right? Here’s the scoop per brownie (based on my exact ingredients – yours might vary a smidge):
- 320 calories – Consider it fuel for your soul
- 18g fat – That’s where all the flavor hides!
- 35g carbs – Worth every last one
- 4g protein – Well, the eggs count for something
Remember – different brands of brownie mix or cream cheese can shift these numbers. But let’s be real… you’re not counting when heaven’s on your plate!
FAQs About Brimstone Brownies
Can I use homemade brownie batter instead of a mix?
Absolutely, sugar! My recipe works beautifully with your favorite from-scratch brownie batter – just make sure it’s a fudgy style, not cakey. You’ll need about 2 cups of batter. The secret’s keeping that rich, dense texture that stands up to the cheesecake swirl.
How can I make the red swirl REALLY pop?
Oh honey, I feel you – that fire-engine red is half the fun! Use gel food coloring instead of liquid – it’s more concentrated. Start with 2 teaspoons and add more until it’s as bold as your personality. For extra drama, add a pinch of red decorating dust to the cheesecake mix.
Can I freeze Brimstone Brownies for later?
You bet your boots! Freeze them whole or sliced in an airtight container for up to 3 months. Thaw overnight in the fridge – the texture stays perfect. Though between you and me? They never last that long around my grandkids!
Share Your Brimstone Brownies Experience
Now sugar, I’d love to hear how your Brimstone Brownies turned out! Did they disappear faster than a jackrabbit? Snap a picture and tag #GoodOlRecipes so I can see your devilish creations. Leave a comment below telling me what your family thought – honest reviews only! And if you loved ’em as much as we do, give this recipe a five-star rating to help other bakers find this little slice of heaven.
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