Let’s get baking! Here are the steps to create these delicious cookies:

1. Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
2. In a bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
3. In a large mixing bowl, cream together the softened butter and sugar until light and fluffy, about 3-4 minutes.
4. Beat in the egg and vanilla extract, followed by the lemon zest and juice, mixing until well combined.
5. Gradually add the dry ingredients to the wet ingredients, mixing just until incorporated.
6. Gently fold in the chopped raspberries and optional white chocolate chips, being careful not to overmix.
7. Drop tablespoon-sized scoops of dough onto the prepared baking sheet, spacing them about 2 inches apart.
8. Bake in the preheated oven for 12-15 minutes, or until the edges are lightly golden.
9. Remove from the oven and let the cookies cool on the baking sheet for 5 minutes, then transfer them to a wire rack to cool completely.

Remember, the key to a tender cookie is not overmixing. Those little hands-on experience moments in my granny’s kitchen taught me that patience and a gentle touch make all the difference.