Crystal Garden - cooking recipe

Ingredients

1/4 c. water
1/4 c. bluing
coal or charcoal briquettes
1/4 c. sugar
1 Tbsp. ammonia
food coloring

Preparation

Place the water, bluing, salt and ammonia in a jar and stir thoroughly.
Set the coal or briquettes in an old pie tin in a single layer.
Pour the solution on top.
Put several drops of food coloring on coal (or briquettes), leaving some areas plain. Set it in a quiet place.
The next day, you will see gorgeous crystal-formations.