While the material cools, score it with the spoon or spatula in crisscrossed furrows about 1 inch apart.
1. Place the sugar, potassium nitrate, and water in the bucket. Heat with a low flame, stirring occasionally until the sugar and potassium nitrate dissolve.
2. If available, add the ferric oxide (rust) to the solution. Increase the flame under the mixture until it boils gently.
NOTE: The mixture will retain the rust coloration.
6, Allow the material to air dry, preferably in the sun. As it dries, rescore it occasionally (about every 20 minutes) to aid drying.
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