01 -
Preheat oven to 350°F (175°C). Line two baking sheets with parchment paper.
02 -
In a large mixing bowl, thoroughly rub together granulated sugar and lemon zest using your fingers to release aromatic oils.
03 -
Add softened butter and brown sugar to the bowl, then mix on medium-high speed for 3–4 minutes until pale and fluffy.
04 -
Incorporate the egg yolk, vanilla extract, and freshly squeezed lemon juice, blending until just combined.
05 -
Gradually mix in salt, baking powder, baking soda, and all-purpose flour. Mix gently and stop when traces of flour are still visible to avoid overworking the dough.
06 -
Chop frozen raspberries into small pieces. Gently fold them into the dough, mixing minimally to prevent excessive bleeding of color.
07 -
Scoop large balls of dough, approximately 3 tablespoons per cookie, spacing five per prepared baking sheet. Sprinkle each with flaked salt.
08 -
Bake for 12–15 minutes, until edges are lightly golden. Allow cookies to cool on the baking sheet briefly to finish setting.