Make sure your butter is at room temperature. Then, in a big bowl, soften your butter with an electric hand mixer.
Add the sugar to the soft butter and whisk for 5 minutes. The sugar and butter should become light pale.
Next, mix in your egg to the fluffy sugar and butter combo. Whisk well.
Here come the flavor makers. Throw in vanilla extract, salt, orange zest, and rosemary to the cookie dough. Beat until smooth.
In another bowl, mix flour with the baking powder and baking soda. Then add it to the cookie dough. Mix until it forms a soft dough. As always with cookies, do not overmix. Overmixing makes them tough and we do not want that.
Press your cookie dough into a disk, cover it with plastic wrap, and refrigerate for 30 - 45 minutes.
Preheat your over to 170° C and prepare a cookie sheet covered with parchment paper.
For the next step, you can follow Scenario 1: Chunky Cookies or Scenario 2: Cookie Cutter Method.
In Scenario 1: Chunky Cookies, using a teaspoon, we take a teaspoon of the chilled dough and shape round cookie patties. Do not place them too close to each other on the cookie sheet as they will grow a bit in the oven. Bake them for 20 - 25 minutes until set and the sides are slightly golden.
In Scenario 2: Cookie Cutter Method, we roll out the chilled dough to 6 mm thickness on a floured surface and use a cookie cutter to cut out pretty little cookies. Bake these cookies for 10 - 12 minutes in the oven until set and the sides are slightly golden.
Note: If you need to cook your cookies in several batches, keep the dough chilled in the fridge in-between.
Remove the cookies from the oven, let cool on the cookie sheet for 5 minutes and then, to fully cool down, on a wire rack.
For the glaze, mix all the ingredients in a small bowl until the powdered sugar is fully combined. Use a spatula or a spoon to glaze the completely cooled cookies over a parchment or reusable baking mat to catch any glaze droplets. Top the cookies with some extra rosemary and/or orange zest. Let the glaze rest until completely set.
These cookies taste even better the next day. Store them in an airtight box and in a cold place. Enjoy and share them with others!