Assemble your materials.
Put your pie pan or baking sheet in the freezer. Then pour 1/2 cup maple syrup into a small saucepan.
Place the saucepan over medium-low heat, stirring constantly until the syrup becomes foamy and thickens, about 10 minutes.
Remove the cookie sheet from the freezer. Turn off the stove. Then using oven mitts, dribble the hot syrup out of the saucepan and onto the cold pan. Wait about 5 to 10 minutes for the maple syrup crystals to harden. (You can put it back in the freezer to make this process go faster.)
Use a spatula to pull the crystals off the pan. Examine your creation and then eat them!