I have searched through this forum...am wondering which is the best way to make red mmf....should I add my wilton no taste red when I am melting the marshmellows...or knead it in....also heard about adding other colors like purple to help it turn red...I am making a fire engine cake
I would start with pink/rose and add it to the melted marshmallows. Then add the red, which you will need a lot of. You may end up having to knead color in as you work the sugar into the marshmalllows.
I don't know about purple. That will darken it and if you need a fire engine red, you're better of sticking with pink/rose and red red.
Be aware that the taste probably will change with that much red.
Alternately, you can buy pre colored fondant. I think Satin Ice has red fondant.
I would cheat a little - buy for your MMF not white but pink marshmallows Add color to melted marshmallows to get even darker pink.
The same as above - add red, knead color as you work sugar into this.
Let your MMF rest, well covered, for 24 hours - the color will deepen.
Alternatively, you can only paint it on top (not color the whole).