Preparation begins by creaming softened unsalted butter with granulated sugar until the mixture becomes light and fluffy. This step is essential for creating a tender texture. An egg and vanilla extract are then added, contributing richness and depth while helping bind the dough together smoothly.
In a separate bowl, all-purpose flour, baking soda, and salt are mixed before being gradually incorporated into the wet ingredients. This creates a soft, workable dough that holds its shape without becoming dense. The simplicity of the dough allows the pineapple flavor to remain the star of the cookie.