Easy 6 Minute Microwave peanut Brittle

Are you ready to have your mind blown?  This phenomenally delicate, light as air peanut brittle is the easiest candy making project on the blog, it’s even easier to make than truffles or bark, all thanks to the microwave.  But I know easy doesn’t cut it if the finished product isn’t great, and this is the best brittle I’ve ever eaten.  The crisp airy texture is due to billions of teensy bubbles created by a last minute dash of baking soda, which makes the hot molten candy fizz up like crazy.  The roasted peanut flavor is perfect, I used tiny salted and roasted Spanish peanuts, still in their skin, which I highly recommend if you can find them.  You can also use raw blanched peanuts, regular roasted peanuts, or even other nuts., but the tiny peanuts make an extra crunchy and delicate brittle.   This is a must try.

Easy Microwave Peanut Brittle

Making candy can be a persnickety process, you have to take exact temperature readings and time everything just right.  This method cuts through all that…the only tricky part is that you need to know your microwave wattage.  Mine is 1000 watts, and that’s what this recipe is calibrated for.  It’s a standard wattage, so chances are, unless you have an extra small or super duper microwave, it will work for yours.  Check the inside of the door, the label on the back of the machine, or your manual.  Otherwise, check the serial number and look it up online.  1000 watts is fairly common, but yours could be more or less.  It’s worth taking a minute to determine your wattage because the microwave is a fabulous tool for candy and jam making.  My 3 MINUTE MICROWAVE JAM was a revelation — imagine jam made from fresh fruit, no sugar at all, in minutes.   And my EASY MICROWAVE FUDGE gives dorm bound students and younger kids without stove top privileges a chance to make fantastic candy.

easy microwave peanut brittle

The defining characteristic of brittles as opposed to toffee or caramel is their texture.  Brittle is an accurate description, it isn’t hard on the teeth, like toffee can be, and it melts rather than sticks in the mouth.  This one has a beautiful golden, glossy color.

Easy Microwave Peanut Brittle


  • 1 cup granulated sugar
  • 1/2 cup light corn syrup
  • 1 Tbsp butter
  • 1 cup Spanish peanuts, roasted and lightly salted
  • 1 1/2 tsp baking soda
  • 1 tsp vanilla


  1. Set oven to its lowest setting.
  2. Line a baking sheet with a silicone liner like silpat. You can also lightly butter the pan, or use a layer of nonstick foil. Put the pan in the oven to warm.
  3. Put the sugar and corn syrup in a large glass bowl. Stir to combine.
  4. Microwave for 3 minutes, then stir. Microwave for another 3 minutes.
  5. Add the butter and peanuts and stir.
  6. Put back in the microwave for 2 more minutes.
  7. Stir in the baking soda and vanilla.
  8. Quickly turn out the mixture onto the warmed baking sheet. Spread the candy out with a flat spreading knife (I buttered it lightly) as evenly and thinly as you can. Don't worry about getting it symmetrical or neat.
  9. Let the candy sit until completely cool and hard, maybe 30 minutes or so, and then remove from the pan and break into pieces.
  10. Store the candy in cellophane bags.


I adapted my recipe from Cooks.com


Easy Microwave peanut Brittle makes a perfect holiday gift!

 Tips for success:

  • Know your microwave wattage,  this recipe is calibrated for a 1000 watt microwave.
  • Have EVERYTHING ready BEFORE you begin.
  • Pay attention to the type of nuts you buy.  Raw peanuts can go in at the beginning of cooking, but roasted peanuts go in later to avoid burning.  If using unsalted peanuts, add salt to the candy mixture, but if your nuts are already salted, you won’t need to add any.
  • A silicone spatula or ‘spoonula’ works best for stirring without sticking.
  • Make the candy on a dry day…too much humidity in the air can cause sticky candy.
  • Don’t double the recipe, make another batch if you want more.  If you try to work with too much candy at once, you won’t be able to spread it out before it cools.
  • Yes this is easy, but the candy mixture will be HOT.  Take care when stirring and pouring, and this is not a project for young children.

Light and crisp microwave peanut brittle

If you decide to give this a try, I would love it if you would report back to us in the comments.  Especially give us your microwave wattage details and any changes you made to adjust.  I highly encourage you to try this, it turned out better than any store-bought brittle I’ve had and it’s going to be the best holiday gift ever.

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18 Responses to Easy Microwave Peanut Brittle

  1. Errieda says:

    Hi Sue, what a wonderful find your blog is. I’m on the other side of the world (South Africa) and we don’t have ready access to corn syrup. What would you recommend as a substitute? Can I use glucose or golden syrup? Honey, perhaps?

  2. diana says:

    “Set oven to its lowest setting.” ??

    Do you mean that we should use the “Low” power setting on our microwave? Is this hot enough?

  3. Corinne says:

    my microwave is 1200 watts so how long should i cook it for?

    • Sue says:

      Well, I’m not sure, Corinne, you’re going to have to experiment. Try maybe 2 minutes, then stir, then 2 minutes more, and then 2 minutes after the butter. Keep an eye on it through the window and if it starts to turn deeper brown, stop it. Let me know what happens!

  4. sandy says:

    I have been making this microwave peanut brittle for several years. It is fantastic and so easy. I also use pecans or coconut in my brittle

  5. Susan says:

    I can’t wait to try this recipe, Sue! I just happen to have a big bag of peanuts sitting in the fridge too ;)

    • Sue says:

      I found it really hard to resist, Susan, I bagged it up to give away and before we knew it, Grant and I had polished it off…

  6. I’m so glad I popped by today! This is genius! I’m not really the world’s most enthusiastic candy-thermometre sort of person, so this is right up my alley. What a great idea!

  7. I LOVE peanut brittle and will definitely be trying this microwave version (once I figure out what wattage my microwave is ;)

  8. I’ve always wanted to make peanut brittle. My mom used to make it and my dad loved it. There is just not enough time to make it all! Love this easy recipe – tucking away for one day :)

  9. Edna Siu says:

    Sue, the clip is beautifully captured, the shot is so sweet that the brittle melts in my eyes..

  10. Foodiewife says:

    Hmmm. I guess I’ll have to figure out what my wattage is on our MW. I have no idea! I’ve seen this method before, and have toyed with trying it. You certainly sold me on it. We love peanut brittle, for sure.

  11. Monique says:

    Must check to seeif it is the same as mine..one of my first clients 35 yrs ago gave me some w/ the recipe..
    You ahve photographed the brittle in a way everyone will want to make it!

    • Sue says:

      Thanks Monique, I wonder if your recipe includes the baking soda, that seemed to be responsible for the great texture in this brittle.

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