Cookie Glaze

http://www.kingarthurflour.com/recipes/simple-cookie-glaze-recipe

This glaze dries hard and shiny, and is perfect for coating the top of your cookies in preparation for decorating with food-safe pens or makers. This glaze is a little on the thick side, and it isn't perfectly smooth when you apply it, but should settle into a smooth surface within half a minute or so. Glaze one cookie and set it aside for a minute. Has the glaze settled into a smooth surface? If so, it's the right consistency. Remember, it's easier to add more liquid than to stir in more sugar, so start with a glaze that's thicker than you think it should be, then add milk little by little to adjust the consistency. Watch our how2heroes video for more tips. (click link above to see video)

2 1/4 cups confectioners' sugar, sifted
2 tablespoons light corn syrup
1 1/2 to 2 tablespoons plus 1 teaspoon milk
Food coloring (optional)

Quote :

Tips from our bakers

Be sure you measure accurately here. Too little milk, and the glaze won't spread nicely. Too much milk, and it will be thin, spotty and develop splotches overnight.
Once the glaze has hardened, you can color on it with food safe markers, or you can pipe another color over the top with Royal Icing. You can sprinkle sugar on top of the wet royal icing for a sparkly effect.

Directions

1. In a small bowl, whisk together the confectioners' sugar, corn syrup, and 1 1/2 tablespoons of the milk until smooth.

2. Add food coloring, if desired.

3. Spread one cookie with glaze, using a table knife or offset spatula. If it doesn't smooth out after 1 minute, dribble in additional milk, 1/2 teaspoon at a time, until the glaze reaches the right consistency.