What is a simple recipe for making icing sugar cookie?

Ingredients:

- 1 cup (2 sticks) of unsalted butter, softened

- 1/2 cup granulated sugar

- 1/4 cup packed light brown sugar

- 1 teaspoon vanilla extract

- 1 large egg

- 2 1/2 cups all-purpose flour

- 1 teaspoon baking soda

- 1 teaspoon salt

- Royal icing (optional, for decoration)

Instructions:

1. In a large bowl, cream together the butter, granulated sugar, and brown sugar until light and fluffy.

2. Beat in the vanilla extract and egg one at a time, mixing well after each addition.

3. In a separate bowl, whisk together the flour, baking soda, and salt.

4. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Avoid over-mixing.

5. Wrap the dough in plastic wrap and refrigerate for at least 30 minutes or up to overnight.

6. Preheat the oven to 375°F (190°C). Line a baking sheet with parchment paper.

7. Roll out the dough on a lightly floured surface to about 1/4 inch (6 mm) thickness.

8. Cut out the cookies using your desired shapes.

9. Place the cookies on the prepared baking sheet, spacing them about 1 inch (2.5 cm) apart.

10. Bake for 8-10 minutes, or until the edges are golden brown and the centers are set.

11. Let the cookies cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.

12. Once the cookies are completely cool, you can decorate them with royal icing if desired.

Tips:

- To make the rolling out process easier, you can chill the dough for longer or even place it in the freezer for a few minutes before rolling.

- If you don't have cookie cutters, you can use a sharp knife to cut the dough into desired shapes.

- For a more festive touch, you can add food coloring to the royal icing.

- These cookies can be stored in an airtight container at room temperature for up to 2 days, or in the freezer for up to 2 weeks.