01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a large bowl, beat softened butter and sugar until light and fluffy.
03 - Beat in egg and vanilla extract until fully incorporated.
04 - Gently fold in well-drained crushed pineapple.
05 - In separate bowl, whisk together flour, baking soda, baking powder, and salt.
06 - Gradually add dry ingredients to wet mixture, stirring until just combined.
07 - Drop heaping tablespoons of dough onto prepared sheets, spacing 1½ inches apart.
08 - Bake 12-15 minutes until edges are lightly golden.
09 - Let cool on sheets for 5 minutes, then transfer to wire rack.
10 - Whisk powdered sugar with pineapple juice until smooth. Drizzle over cooled cookies.