Preheat oven at 160 degrees C. Sift the flour with the baking powder, baking soda, and salt. Set aside.
Using a mixer attachment, beat the butter and lemon zest (if using) until fluffy. Then add the honey, egg, vanilla. Keep on mixing even if the mix is not entirely homogeneous. It will come together once we add the flour mix.
Then alternate adding some of the flour mix and the milk until you’ve used them all.
Pour in a lined (or buttered and floured) 20 cm x 20 cm cake pan and add your halved strawberries. Bake for 30-35 minutes or until a skewer comes out clean. Enjoy! xx