Rye Sourdough Discard Chocolate Chip Cookies

Let’s Talk About These Rye Sourdough Discard Chocolate Chip Cookies

Oh, these cookies. So I’ll admit—rye flour and tangy Sourdough Discard in my chocolate chip cookies sounded a bit out there the first time I tried it (was I bored, or just dealing with a frighteningly full jar of discard?). Turns out, these cookies are just weird enough in the best possible way. The rye brings this earthy, almost malty background vibe, and the Sourdough Discard, well, you get a gentle tang that’s interesting, not overpowering. The first time I made them, I ate an embarrassing number standing by the oven. I think they’re my favorite for snacking while I wander around the kitchen half-distracted, looking for where I set my phone down.

Everyone I’ve shared them with gets that oh-wait-what’s-in-these look and then promptly asks for the recipe. So here we are! If you’re somebody who hates waste (or who forgets about that jar of sourdough starter way too often—guilty), these cookies are calling your name.

Why You’ll Love This Cookie Recipe (Or Why I Do, At Least)

• I make these when my sourdough adventures get out of hand and I can’t bear to throw out another spoonful. Seriously, every. single. week.
• My family goes bonkers for these, though my brother claims he can taste the sourdough and my partner says he absolutely cannot (who knows, right?).
• If you love cookies that are chewy with those crispy edge bits, this is the holy grail. I’ve burned a batch or two—okay, three—trying to get the timing perfect but it’s worth it.
• They’re a little different without being “weird” enough that your picky cousin will run scared.
• Plus, warming up the house with cookie smells is…almost better than eating the cookies themselves (almost).

What You Need (And What You Can Get Away With)

• 100g (about 1/2 cup) unsalted butter, softened (I sometimes use salted if that’s what’s in the fridge, just skip the added salt below.)
• 75g (1/3 cup plus 1 tbsp) brown sugar, packed (light or dark, whatever is hanging around)
• 50g (1/4 cup) granulated sugar
• 80g (about 1/3 cup) sourdough starter discard (unfed, straight from the fridge is fine—all those purists can look away)
• 1 large egg
• 110g (3/4 cup plus 2 tbsp) rye flour (sometimes I do half rye, half plain AP if I’m running low on rye—still great!)
• 50g (1/3 cup) all-purpose flour
• 1/2 tsp baking soda
• 1/2 tsp salt (or less if you grabbed salted butter, see above)
• 150g (heaping 3/4 cup) dark chocolate chips or chopped chocolate (I sort of eyeball it and go heavy-handed—milk chocolate works too, don’t @ me)
• Optional: a handful of chopped walnuts or pecans (sometimes I do this if I’m feeling fancy, sometimes not)

How To Actually Make Them (With a Side of Chaos)

1. Preheat your oven to 350°F, or 175°C. Toss some parchment paper or a silicone mat on a tray—unless you enjoy excessive scrubbing, which I definitely don’t.
2. In a big-ish bowl, cream together the butter, brown sugar, and white sugar until it’s all light and fluffy; I use a wooden spoon usually, but a mixer is fine if you want to show off.
3. Add your sourdough discard and egg. Mix them in until it’s sloppy but cohesive (don’t worry if it looks a little weird at this point, it always does!).
4. Now, dump in the rye flour, all-purpose flour, baking soda, and salt. Mix only until everything’s just combined. Overdoing it makes for tougher cookies. Or so I’ve learned.
5. Toss in your chocolate chips or chunked-up chocolate. Stir those in along with the nuts if you’re feelin’ nutty (haha, sorry). This is where I usually sneak a taste. Or two.
6. Scoop heaping tablespoons on the tray, leaving a bit of room because they do spread more than you’d expect. If you want ‘em extra chewy, chill the dough 20 minutes, but honestly, sometimes I can’t be bothered and just bake straight away.
7. Bake 9–12 minutes, until they look set at the edges but kind of puffy in the center. They’ll keep cooking once they’re out, so don’t panic if they seem a touch underdone. (I did the first few times and now I know. Sort of.)
8. Let them cool—if you can resist. Sometimes they’re gone before the tray cools. Sometimes my partner burns his mouth trying—so, up to you!

Little Notes I Wish Someone Had Shared With Me

• If your discard is crazy sour, the cookies will taste more tangy. I actually kind of like it as a surprise, but blending it with a fresher starter mellows it out.
• Rye flour is weirdly thirsty—sometimes you need an extra spoon of AP flour if your dough seems too sticky… or just roll with it, the cookies are still good.
• Dark chocolate chunks melt into those gooey puddles, which look awesome, but can make cookies break apart if you try to move them while hot (voice of experience!).

If You Wanna Switch It Up (Some Changes That Actually Worked)

• Once I subbed half the butter for coconut oil (ran out unexpectedly)—texture was nice, but honestly, I missed the buttery flavor.
• I’ve tried a gluten free blend instead of rye; it mostly held together, but taste-wise, it wasn’t the same. Not bad, but kind of meh.
• Swapping part of the chocolate for dried cranberries was pretty fun, actually—made them look all festive. Would do again around Christmas, maybe.

What You Need (Or Improvise)

• A mixing bowl (Any old one will do. I’ve even used a pot when everything else was dirty, so…)
• Wooden spoon or electric mixer (Mixer’s easier, but sometimes I’m too lazy to plug it in!)
• Baking tray and parchment or a silicone mat (or even just a bit of extra butter to grease the pan, if you’re in a pinch)
• Measuring cups/spoons but, to be honest, I sometimes just eyeball the chocolate chips.

Will These Cookies Even Last? (Storage Info)

Store ‘em in an airtight jar or tin; they keep for 2–3 days on the counter, though honestly, in my house, they never make it past day one. I once stuck a few in the freezer “for later” and straight up forgot about them—pulled ‘em out a month later and they were still perfect after a little warm up. Magic.

How We Eat These (Serving, Basically)

I like them with a mug of milky tea in the afternoon, or sometimes we’ll serve them warm with vanilla ice cream piled on top, which is a true thing of beauty. My niece dips hers in hot cocoa (pro move). I have on occasion eaten one for breakfast and have zero regrets.

Mistakes I Made (Pro-ish Tips)

• Rushing the creaming step? I did that once (in a hurry—school run, you know), and the cookies spread all over the place. Patience pays!
• Baking until the centers look fully done = dry cookies. Actually, it works better if you pull ‘em before you think you should—softer and way chewier that way.
• Once I tried adding too many walnuts. It just crumbled apart. Turns out restraint is a virtue in cookies, sometimes.

Your Burning Questions—Answered

• Can I use all all-purpose flour? For sure! It’ll be a classic cookie with less flavor depth, but still tasty. I’d just double the all-purpose in that case.
• What if my sourdough discard is a week old? No worries. Fridge-cold, funky, whatever—you’re good. If it smells super sharp, mix it with a bit of fresher stuff, or live dangerously (I usually do).
• Do these freeze well? Yes, both baked and unbaked dough freeze nicely. I portion the dough, freeze in little balls, then bake fresh—just add a minute or two to the oven time.
• Aren’t these cookies healthy? Erm—well, there’s rye and sourdough, which makes me feel healthy, but I wouldn’t go telling your nutritionist. They’re worth it, though.
• Can I double the recipe? Oh, absolutely. Actually, I almost always do—then again, I forget and complain that I have too many cookies. There could be worse problems…

And, in case you’re wondering if it’s worth the tiny bit of extra effort with the rye and sourdough—take it form me, these cookies will win over the cookie skeptics in your life. Plus, you get bragging rights for not wasting that discard (it’s a tiny victory, but hey, who’s counting?). Happy baking, mate!