We did red. The dark you go, the darker your crystals will turn out. I would go as dark as possible as borax doesn’t absorb food coloring that well. STEP FIVE: Now you are ready to make crystals.

Learn how to make crystal snowflake ornaments ... Fill the jar with boiling water. Add food coloring, if desired. Add 6 T. borax to pint jars. {or 12 T. to quart jars} Stir until dissolved.

Mix until as much borax dissolves as possible. This is your borax solution. If you would like your slime to be a certain color, add one or two drops of food coloring to your borax solution. 2. Place 1 ...