Happy National S’mores Day! Travis and I celebrated with a STEM take on this classic summer treat: s’mores cooked in a solar-powered oven made from one of his recycled Kiwi Crates!

To start, cut the flaps off the top of the Kiwi box (or an old shoebox). Line the entire inside with aluminum foil, and secure with clear tape.

Place 4 graham crackers on the bottom; we love the vegan and gluten-free grahams from Kinnikinnick.

Top two of the graham cracker pieces with dark chocolate squares and the other two pieces with Dandies marshmallows.

Cover the top of the “oven” with plastic wrap and tape down; you don’t want any bugs in there! We placed our oven on the patio in hot sunshine.

82 degrees ought to do it!

After 20 minutes, we took a peek. Our chocolate was so hot and melty and perfect.

The Dandies had softened up, although they didn’t melt all the way down. But these made fantastic s’mores!