Friday, March 26, 2010

We’ve Been Eating Rocks

and mmm, boy were they good!  We are in the middle of a study of rocks and minerals and I found some really great recipes for edible “rocks” to help demonstrate just how the types of rocks are formed.  Our first experiment was with sedimentary rocks…

IMG_6383 Ds3 holds our real rock example for examination.

IMG_6385 Assembling the layers.

IMG_6384 Cooking up some rock goodness!

IMG_6387 Believe it or not these babies were awesome!  We didn’t stir or mix or anything, just layered the ingredients, pressed them down a little and baked.  Yum!  Who knew education could be so tasty?

Sedimentary Rock Snacks  adapted from

1/2 cup butter
1 1/2 cups vanilla wafer crumbs (we used graham cracker crumbs because that’s what we had on hand)
1 can sweetened condensed milk
6 oz chocolate chips
6 oz peanut butter chips (we used white chocolate because that’s what we had on hand.  Really, any combo of chips to equal 1 cup will do fine)
1 cup chopped nuts

Melt butter in a 13x9 baking dish.  Sprinkle crumbs over butter.  Pour condensed milk over crumbs.  Layer remaining ingredients.  Press down gently and bake at 350 for 25-30 minutes.  Let cool, cut into bars and observe the layers.


  1. Those look really good. I saw a similar recipe made with a chocolate jello pudding filling once.

  2. Sounds yummy! What a great idea to bring geography to life!


Thanks for stopping by!