Bake for 12 minutes, until the bottoms begin to turn golden brown. Remove the cookies from the pan and allow to cool completely on a wire rack.
While the cookies are baking, make the glaze by mixing the three ingredients together in a small bowl. The glaze will be thick. Once the cookies have cooled for at least 5 minutes, use a butter knife to spread a thin layer of glaze onto each one. Let the cookies rest until the glaze is completely dry and hard. Store the tea cookies in an airtight container.
*These cookies taste even better as they sit. Feel free to make them in advance!