# What You'll Need:
→ Base Dough
01 - 1 cup unsalted butter, softened
02 - ½ cup granulated sugar
03 - 2 cups all-purpose flour
04 - ¼ cup cornstarch
05 - ¼ teaspoon fine sea salt
# Step-by-Step:
01 - Set the oven to 325°F and line a baking sheet with parchment paper.
02 - In a large bowl, beat the softened butter and granulated sugar together until light and fluffy.
03 - Sift in the all-purpose flour, cornstarch, and sea salt, then gently mix until a soft dough forms without overworking.
04 - Press the dough evenly into an 8x8-inch baking pan or shape into a ½-inch thick rectangle on the prepared baking sheet.
05 - Use a sharp knife to score the dough into wedges or fingers, then lightly prick each piece with a fork.
06 - Bake for 22 to 25 minutes until the edges turn pale golden; avoid browning.
07 - Allow the shortbread to cool in the pan for 5 minutes before cutting along scored lines. Cool fully on a wire rack before serving.