Cover the foil pan or cookie sheet with foil. You can spray it with acooking spray. We did not, and did not have a problem with the candy sticking.But, you might want to use the spray!
Determine if you are making one batch and splitting it to have two colors orif you will make several batches of differing colors.If you are splitting this batch into two colors, have an extra glass measuring cup or bowl handy with a spoon. You will need to move quickly to color the mixture before pouring it out on the foil to cool and harden. Measure 2 cups of sugar and place it in a saucepan.
Add ½ cup of water
Add ½ cup of clear corn syrup
Add ½ cup of corn syrup to the pan
Boil the water, sugar, and corn syrup mixture for about 15 to 20 minutes until the candy thermometer reaches 300 degrees F.
If your thermometer will clip onto the side of the pan, then do so. We used a set of tongs to hold the thermometer.
Stir occasionally. As the mixture reaches 300 degrees, talk about the molten state of the mixture. The sugar went from sugar crystals dissolving in the water to getting molten as the water evaporated.
When the mixture reaches 300 degrees F, remove it from the heat.
Color the mixture. Please be careful if you pour part of the mixture into a separate glass bowl or measuring cup to create a second color. You’ll need to work fast. This does harden quickly.
Carefully pour the mixture onto the foil and let cool.
After 2 hours, take the foil pans, hammer or mallet, and safety goggles outside.
Put on the safety goggles and very lightly tap the candy “glass” with the hammer.You don’t want to smash it too much. You do want pieces that can be used to make a stained class picture or window.
Arrange the stained glass candy on the plastic from the picture frame. Using this hard plastic piece makes it easier to pick up pieces and move them.
