01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a large bowl, cream the butter and sugar until light and fluffy.
03 - Add the eggs one at a time, beating well after each addition. Mix in the vanilla extract and lemon zest.
04 - In a separate bowl, whisk together flour, baking powder, and salt.
05 - Gradually add the dry ingredients to the wet mixture, alternating with milk, until a soft dough forms.
06 - Roll small portions of dough into balls and place them on the prepared baking sheets. Bake for 15-18 minutes until just set and lightly golden.
07 - Cool cookies completely. Carefully scoop out a little from the flat side of each cookie to create a cavity for the filling. Reserve crumbs.
08 - Melt the chocolate with heavy cream until smooth. Mix in the reserved cookie crumbs and jam to form a thick paste.
09 - Fill the cavity of one cookie half with the chocolate-jam mixture, then sandwich with another half, pressing gently together to form a peach shape.
10 - Mix small bowls of water with red and yellow food coloring. Lightly brush each peach with the colors to mimic a real peach, blending as desired. Roll in granulated sugar to coat.
11 - Insert a mint leaf into the top of each cookie for a realistic touch, if desired.