Add in the extract flavoring and mix. Slowly add in the water, 1 teaspoon at a time, and continue mixing the icing until you get it to the consistency you want. See notes for how to find a good piping consistency.
For coloring
If only adding one color, add it to the mixing bowl and gently stir the food coloring in until blended. If you are using more than one color, pour the desired icing into separate bowls, add in the coloring and gently stir the icing until the colors are blended. Scoop the icing into a piping bag for use.
food coloring, optional
Notes
This recipe is best done in a stand mixer with a paddle attachment.
Humidity will affect how much water you might need.
Testing: To find a good piping consistency, spoon some icing out of the bowl and pour it back into the bowl. If the icing takes 8-10 seconds to melt back into the bowl then it is ready to use.When the icing isn’t being used cover the bag and tip with a damp towel to keep it from hardening.Store leftover icing in the freezer or refrigerator in an airtight bag. When ready to use, place the icing back into the mixer and mix until the desired consistency has been reached.Food coloring: You can use natural food coloring too from plants. Here is an example of plant-based food coloring on Amazon.