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…

Ds3 holds our real rock example for examination.

Assembling the layers.

Cooking up some rock goodness!

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 ThinkQuest.org

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.