Solar S’mores

No campfire? No problem! As part of our family fun in Palm Desert, California we decided to put the sun’s power to use to make Solar S’mores.  Graham crackers, marshmallow, chocolate–how would they fare in the triple digit temperatures? Read and find out! 

This post is not sponsored. All thoughts and opinions are my own.


When we head down to desert, our daily itinerary goes like this: swim, hang out indoors, swim, swim, swim, sleep. Now that middle of the day portion, the part when the thermometer is moving up past 110, that’s when I shine.


You see, I’m not great at sitting still. So I decided to put this time of day to use and literally harness the power of the sun. It keeps the fun going even when it’s too hot to play outside and serves for a yummy treat.



How to Make Solar S’mores



  • Graham crackers, marshmallows, chocolate bars
  • Tin foil





  • Assemble your s’more in the traditional fashion, sandwiching marshmallow and chocolate in between graham crackers
  • Wrap in tin foil
  • Place in direct sunlight




Our Results

With our s’mores, we monitored the melting using Snapchat (my username is melaniejwalsh) and the temperature reading filter.




Although we reached temperatures well over the melting point required for marshmallow, they stayed pretty solid. Softer, but not liquified. One possible reason is that we used jumbo marshmallows.  The chocolate, however, was gooey goodness in no time. It led to a good conversation about the states of matter and how solids can transform.  We also chatted about solar power and other possible uses for the sun.


Another fun experiment to our solar s’mores was swapping out traditional Hershey’s chocolate bars for something a little more adult. A friend brought home alcohol infused chocolate from a trip to Japan. Spiked S’mores! Yes, please!




I used a Sharpie to clearly label mine as the chocolate isn’t just flavored like alcohol. You might also want to swap out the milk chocolate for things like Reese’s Peanut Butter Cups, Andes Mints, or even white chocolate.


Our Solar S’mores were slightly different than those prepared over a campfire with melted chocolate rather than melted marshmallow.  The best features include: yummy flavors, inexpensive entertainment, cool discussion of solar power & states of matter.




What chocolate will you put in your Solar S’mores?

Post Author: Melanie

Hanging with my family, making fun stuff, & going on adventures.

6 thoughts on “Solar S’mores


    (July 25, 2016 - 6:13 pm)

    Got to save this for the next heat wave!


    (May 5, 2017 - 5:34 am)

    Umm… you had me at rum chocolate! Seriously!! I’ve got to get some of that!


    (May 5, 2017 - 5:41 am)

    Such a fun idea!


    (May 5, 2017 - 12:13 pm)

    Definitely our next family fun treat this summer!

    Momma To Go

    (May 7, 2017 - 11:21 am)

    THATs a really cute idea! I’d do darkness chocolate personally

    Adelina Priddis

    (June 1, 2017 - 3:33 am)

    This is such an awesome idea! I could never live where the temps got into the triple digits, but I think we’ll still harness the sun for some s’more making fun.

Leave a Reply