1. Preheat your oven to 350°F (175°C).
2. In a mixing bowl, cream together the softened butter and sugar until light and fluffy.
3. Add the egg and vanilla extract, mixing until well combined.
4. In a separate bowl, whisk together the gluten-free flour, baking powder, and salt.
5. Gradually add the dry ingredients to the wet mixture, mixing until just combined.
6. Fold in the pureed strawberries until evenly distributed.
7. Drop spoonfuls of dough onto a baking sheet lined with parchment paper.
8. Bake for 10-12 minutes or until the edges are lightly golden.
9. Allow to cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.

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