Big Batch Brownies

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(from 3 reviews)

Big Batch Brownies

Hi friends, hope you all had a wonderful summer. I’m back from India after almost 2 months of vacation. We went to celebrate the little one’s first birthday. Fortunately everything went on very smoothly this time unlike the last visit where my eldest fell sick and it was very scary especially with the swine flu scare at that time. After this visit my eldest has picked up a lot of Tamil and these days he is easily switching between Telugu and Tamil. Initially I had planned to post recipes from there regularly but with a busy schedule I wasn’t able to do that even though I had a couple of recipes lined up.

I baked these brownies long back for a get together here in Canada. I bought the brownie mix in Costco. It’s the huge pack. The instructions in the package were given for two 9×13 inch pan and three 8 inch pans. Since I wanted lot more brownies I used a bigger pan which I got from a restaurant supply store.


Big Batch Brownies Recipe

Prep TimeCook TimeMakes
20 Mins35 MinsAbout 12 Dozen Squares
Big Batch Brownies
5.0 from 3 reviews
Want to be the star in your next pot-luck gathering? Then bake these brownies and it will become a huge hit.
  • 4 Pouches Ghirardelli Brownie Mix
  • 1 And 1/3 Cups Water
  • 1 Cup Vegetable Oil
  • 1 Cup Yogurt (Plain)
  • 1 Tablespoon Vanilla Extract
  • 2 Cups Chopped Walnuts
  1. Preheat the oven at 325F/160C for 15 minutes. Line the baking sheet with aluminum foil (leaving enough sheet around the edges so that you can lift it off easily once the brownie is cooled enough) and grease it lightly with non stick cooking spray. I used a very big cookie tray. It measured to 21×15 inches.
  2. Empty the contents of the brownie mix in a large bowl. Then add the rest of the ingredients one by one and mix it using a big wooden spoon.
  3. Pour the batter onto the prepared pan and spread it out with a spatula. Bake it for about 30-40 minutes. Doing the toothpick test for doneness in this case could be tricky because it has a lot of chocolate chips in it and the toothpick might get in the melted chocolate chips and it would be difficult to say whether it is done or not. So see if the brownie is pulling away from the sides of the pan and you should be fine.
  4. Transfer the pan to a cooling rack and leave it for 15-20 minutes to cool. Then slowly lift off the sheet and let it cool for another hour or so before you can slice the brownies.
  1. The brownies looked and tasted great. It sliced very well too. I baked it for a big party and it was a huge hit.
My Notes:
  1. I did not grease the aluminum foil, so it was a bit difficult to remove the brownies from the sheet. So do not forget to grease it with non-stick cooking spray or shortening.
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Big Batch Brownies

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  1. Sowmya

    Hi Madhu
    I am going to bake the brownies for a big gathering of about 200 people. How many days in advance can I bake them and how to store them ? Do they have to be refrigerated?


    • Madhuram

      I’m thinking maybe 2-3 days in advance if you don’t want to freeze it and definitely refrigerate it. You can remove it from the fridge maybe on the day of the event for it to come to room temperature. But if you want to bake it well in advance maybe you can follow the tips mentioned here from freezing brownies. I have not done it so far.

  2. Durga

    Extremely successful outcome. Made for 1/4 recipe and followed to the T on the baking instructions. Thank You so much for this recipe.

    • Madhuram

      You’re most welcome, Durga.

  3. Sejal

    Any yogurt is okay? Such as plain fat free or whole fat. Any preferences? What about greek yogurt?

    • Madhuram

      Greek yogurt is too thick so you might have to add some water to the batter but other than that any yogurt is ok, plain or low fat or fat free.

      • Sejal

        Thank you!

        • Madhuram

          You’re welcome.

  4. Sangee

    Are these measuremwnts for 1 pouch of mix or 4 packets. Please let me know. How much will it yield if we are using only one packet. TIA

    • Madhuram

      I think for one pack you might get about 16-24 pieces depending upon the size you cut. The simple measurement is 1/4 cup yogurt for each egg to be replaced.

  5. Ja Sta

    Will Greek yogurt work?

    • Madhuram

      Greek yogurt is pretty thick, so I think adding some water should be fine or just use regular yogurt.

  6. Christelle

    I just tried it and loved it. I am staying in school for the holidays, and wanted some brownies and realized i didn’t have eggs, luckily i had yogurt. After trying this recipe,I don’t think i will go back to making brownies with eggs. They are so good

    • Madhuram

      Thanks a lot Chirstelle.

  7. bhavani

    hi madhuram, I am a first time baker and am sooooo nervous to try this one!!!! I have to make a big batch of egless and nut-free brownies or muffins. this recipe of urs looks simple enough. what can I substitute instead of walnuts? also, I just have a 9×13 tray, can I bake it in batches? wont the batter change consistency by the time I come to bake the last batch….. also, shud I put it in the bottom, middle or top rack?? sorry for soooo many questions, as I said, I am a first time baker!
    regards, bhavani.

    • Madhuram

      If I remember right I think the pack comes with instructions for a 9×13 inch pan. Put the batter in the fridge while one portion of it is baking. Baking in the middle rack is ideal for almost everything like cookies, cake, brownies, muffins etc.

  8. Vidya

    Is store bought yogurt good for this?

    • Madhuram

      Yes. I have tried it with store bought yogurt only.

  9. Deepa

    Turned out really well!! Tried it today.

    • Madhuram

      That’s great Deepa.

  10. Vaishali

    how many ounces is one pouch

    • Madhuram

      I don’t remember Vaishali.

      • Vaishali

        was it a box or pouch? is it the same size as other brownie boxes

        • Madhuram

          As far as I recollect, it was a big box and had 3 pouches in it. Whatever the size it maybe, read the instructions in the box and subsitute 1/4 cup yogurt for every egg mentioned in the recipe.

  11. Samata

    Hi Madhuram,
    Those brownies look fudgy and delicious. The brownie mix you mentioned, can you specify what kind it is.Because I looked for it but there are 4 or more kinds of Costco mixes . Also is it a vegan friendly mix ?

    • Madhuram

      The brand was Ghirardelli-Triple Chocolate, Samata. I don’t remember if it is vegan. You should be fine with any mix though. Just use (soy)yogurt instead of the eggs mentioned in the recipe and proceed as usual.

      • Maggie

        The Ghirardelli Double Chocolate Brownie mix is vegan. The Triple Chocolate is not.

        • Madhuram

          Thanks for the infor Maggie.

  12. Priya

    Wonderful to see u back with a bang after ur India’s trip, thanks god everything went well for u..Mine was somewat hectic there..

    Btw brownies looks super delicious and addictive..

  13. Neela

    Few weeks ago I tried a ready made box approximately 18 oz and added only one can of 15 oz Libby’s pure pumkin mixture. Just these two ingredients and nothing else, not even water is needed. Just keep stirring and mixture will come out right. Than bake. It was so delicious, and moist too. You have to buy a box that says moist on it. If anyone wants to try.

    • Madhuram

      That’s true Neela. I too have heard about this recipe.

  14. vani sudarshan

    It looks really great! Will definitely try this out. but if i need to used just one box how many pouches do i get and what will be the measurements of the ingredients? Pleass let me know.
    Thanks, Vani

    • Madhuram

      Thanks Vani. All that information is available on the pack.