Chop your grapes and set them aside, chill if you like.

Preheat oven to 350 degrees.

Put a bit of butter on your fingertips and smear, just a bit over top each tortilla (you may not even use all of the butter),

Combine cinnamon and sugar in a small ramekin.

Sprinkle tortillas with as much or as little cinnamon & sugar as you like.

Cut into triangle chips (like a pie) or strips.

Bake on an ungreased baking sheet (sugar side up) for 8-10 minutes or until crisp.

Check them and remove smaller ones early so they don't burn.

Allow chips to cool completely.