You catch the smell through the steam vent and suddenly you are starving. It hits you before you even see the brownies. That rich chocolate smell kinda pulls you right in. You spot the float valve turned to sealing and the steam cues tell you it’s almost done.

It’s funny how something so simple, like brownies, can make you feel cozy indoors. You remember those nights when you just wanted a quick fix that didn’t involve a million dishes. This one bowl sourdough discard brownie recipe is just that—a total lifesaver.
You recall mixing everything in one bowl, saving your sink from a mess. The sealing ring on your pressure cooker did its job well, keeping all that wonderful steam trapped in. Before you know it, the quick release pops up, and you can’t wait to dig in.
The Truth About Fast Tender Results
- Pressure cooking locks in moisture so brownies stay tender and fudgy.
- You get a better rise thanks to the steam and broth depth inside the cooker.
- The float valve lets you know when pressure is building, so no guesswork.
- The sealing ring keeps everything airtight, giving the best texture.
- Quick release lets you stop cooking exactly when brownies reach perfect doneness.
- Because it’s fast, it keeps the sourdough discard’s tang without drying the brownies.
- You avoid using the oven, which means your kitchen stays cooler, no heat haze.
Your Simple Ingredient Checklist
- ½ cup Butter
- 1 ¼ cup Chocolate Chips (divided)
- 1 cup Granulated Sugar
- ½ cup Brown Sugar
- ½ cup Unsweetened Cocoa Powder
- ½ cup Flour
- ½ cup Sourdough Discard (unfed)
- 2 Eggs
- 1 teaspoon Vanilla Extract
Make sure your sourdough discard is unfed and nice and thick. It’s the secret that adds a little tang and extra chewiness to these brownies. The rest is just your basic pantry stuff but together they work so good.
When you pick the chocolate chips, splitting them like 1 cup to melt and ¼ cup to fold in works real good. Butter gotta be unsalted so you control the sweetness better, and your vanilla extract? Pure if you got it – the smell’s unbeatable.

The Full Pressure Cooker Journey
Step one, you gotta line that 8x8 inch pan with parchment paper or grease it well. Nothing worse than fighting your brownies when you wanna just dig in fast.
Next, in one big microwave-safe bowl melt your butter with 1 cup of chocolate chips. Do this in small 30 second bursts and stir in between. The mixture turns glossy and rich real quick.
Stir in granulated and brown sugar 'til all mixed up nice. Then you whisk in eggs and vanilla until the batter looks smooth and shiny. This part’s gonna feel a lil messy but trust me on this.
Time for your sourdough discard. Fold it in gently but good, then sift in cocoa powder and flour. Fold again carefully so you don’t overwork that batter. Now add the last ¼ cup chocolate chips and give a light fold.
Pour the batter evenly into your prepared pan. Set it on a trivet in your pressure cooker, pour broth to cover the bottom but not touch your pan. Seal that lid and watch the float valve pop up to sealing.
Cook for about 28-32 mins using natural pressure cooking. When time’s up, use quick release to let out steam fast. Let brownies cool in the pan before you slice 'em. Patience here pays off real good.

Easy Tweaks That Make Life Simple
- Swap unsalted butter with coconut oil if you wanna dodge dairy.
- Use a jar lid that fits inside the pressure cooker insert as a pan if no 8x8 pan around.
- Add a pinch of cinnamon to the dry ingredients for a cozy twist.
- Use dark chocolate chips to pump up the richness if that’s your vibe.
- If you’re short on time, start with room temp eggs to mix quicker.
These tweaks keep things easy and you got plenty of room to experiment. The broth depth inside the pot’s real important so don’t overfill or underfill the bottom.
When You Finally Get to Eat
You grab a warm brownie slice and that soft crumb kinda melts on your tongue. The chocolate hits rich but not overly sweet. You feel that little sourdough tang that makes these stand apart.
The edges get a lil crisp which you totally love. The center stays fudgy and dense. It’s the kinda brownie you wanna eat for breakfast even though you know you probably shouldn’t.
You remember how little cleanup was involved and it still tastes like you spent hours baking. That warm sticky chocolate makes your kitchen smell like heaven.
Each bite reminds you why you keep your pressure cooker so close. This recipe’s simple but feels like a serious treat for your day.
Making It Last All Week Long
If you got leftovers, store brownies in an airtight container at room temp for a couple days. They stay soft but still yummy.
For longer life, pop them in the fridge. They’ll keep about a week that way but might get a bit firmer. Just warm a slice before eating.
You can freeze individual pieces wrapped tightly in plastic or foil. Thaw them out at room temp or zap for a few seconds in the microwave.
If you wanna make ahead, you can prep the batter and freeze it in your pan. When ready, thaw and pressure cook as normal. It works real good to save time on busy days.
Everything Else You Wondered About
- Can I use fed sourdough discard? It’s best to stick with unfed discard here so the tang stays balanced and texture’s perfect.
- What if my pressure cooker doesn’t have a float valve? Watch for steam cues and timing; make sure sealing ring is tight to trap steam.
- Is quick release safe for this recipe? Yep. It stops the cooking instantly so brownies don’t overcook and dry out.
- Can I swap flour for gluten-free? Sure thing. Use a 1-to-1 gluten-free blend for best results.
- Do brownies rise much in pressure cooker? They get a little rise but mostly stay fudgy and dense because of the broth depth and steam.
- What’s the best way to know when brownies are done? A toothpick with a few moist crumbs is your go-to. Don’t wait for a dry toothpick or you risk drying them out.
Explore More Tasty Dishes
If you love quick and satisfying pressure cooker recipes like these cottage cheese queso dip with Raisins and Dates, or tasty tuna steak recipes with Ground Beef, your pressure cooker is ready to impress anytime.
For a simple and flavorful meal prep, check out our tortilla roll ups with Creamy Alfredo Sauce that pairs perfectly with quick desserts like these brownies. Enjoy your tasty kitchen adventures!

One Bowl Sourdough Discard Brownies Recipe
Equipment
- 1 Mixing bowl Large
- 1 Pressure Cooker
- 1 8x8 Baking Dish
Ingredients
Main ingredients
- 0.5 cup Butter unsalted
- 1.25 cup Chocolate Chips divided
- 1 cup Granulated Sugar
- 0.5 cup Brown Sugar
- 0.5 cup Unsweetened Cocoa Powder
- 0.5 cup Flour all-purpose
- 0.5 cup Sourdough Discard unfed
- 2 Eggs
- 1 teaspoon Vanilla Extract
Instructions
Instructions
- Line an 8x8 inch pan with parchment paper or grease it well.
- In a microwave-safe bowl, melt butter with 1 cup of chocolate chips in 30 second intervals, stirring in between, until smooth.
- Stir in granulated sugar and brown sugar until combined.
- Whisk in eggs and vanilla extract until the batter is smooth.
- Fold in the sourdough discard gently.
- Sift in cocoa powder and flour. Fold gently to combine without overmixing.
- Add remaining ¼ cup of chocolate chips and fold lightly.
- Pour batter evenly into prepared pan and place it on a trivet inside your pressure cooker.
- Pour broth into the cooker below the trivet, seal lid, and cook for 28–32 minutes on high pressure.
- Use quick release when cooking ends and let brownies cool in pan before slicing.




