If you use the citrate method, it takes a long time.
Instead:
250ml cold distilled water
1 ml gold chloride (20) drops
10 drops 1 M sodium carbonate
20 drops of corn syrup mixture (1/2 water and 1/2 corn syrup)
Heat it in the microwave for 2 minutes
Done.
Use a different dropper for the gold so you don't contaminate the bottle of gold chloride.