# of drops per cup of frosting r=red, b=blue, y=yellow, o ...bakecakery.com/wp-content/uploads/2013/07/Natural_Food_Coloring_Guide.pdf · Natural Food Coloring 10 o 16 15 . Title:
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1: 1360 r 2: 160 r 3: 20 r # of drops per cup of frosting r=red, b=blue, y=yellow, o=orange 4: 160 o 5: 80 y + 80 r 6: 20 o 7: 160 y 8: 20 y 9: 10 r + 10 y 10: 80 y + 80 b 11: 10 b + 10 y 12: 6 r + 6 b + 6 y 13: 680 b 14: 160 b 15: 20 b 16: 46 r + 46 b + 46 y 17: 80 r + 80 b 18: 10 r + 10 b