Collect 4 cups of water, 1 cup of sugar and red food coloring.
Boil the 4 cups of water in a saucepan over high heat. Once the water has reached a rolling boil, turn off the heat and add sugar to the pan. Stir until the sugar is fully dissolved.
Add red food coloring, drop by drop, until the hummingbird food is the desired color. Let the mixture cool fully before adding it to the hummingbird feeder.