01 -
Preheat oven to 175°C. Line a baking sheet with parchment paper.
02 -
Combine blueberries, granulated sugar, and 15 ml lemon juice in a small saucepan. Cook over medium heat, stirring occasionally, for about 10 minutes until blueberries burst and mixture slightly thickens. Set aside to cool.
03 -
In a separate bowl, whisk together all-purpose flour, baking powder, and salt until well combined.
04 -
In a large mixing bowl, beat softened butter and powdered sugar until pale and fluffy. Add the egg, vanilla extract, and lemon zest. Mix until just incorporated.
05 -
Gradually incorporate the dry ingredients into the butter mixture, mixing gently until a soft dough forms. Avoid overmixing.
06 -
Roll dough into 2.5 cm balls and arrange evenly on the prepared baking sheet. Flatten each slightly with your palm.
07 -
Spoon a small amount of cooled blueberry filling onto the centre of each dough disc.
08 -
Bake in the preheated oven for 12 to 15 minutes, until cookie edges are lightly golden. Transfer to a wire rack to cool completely.
09 -
In a small bowl, whisk together powdered sugar, 30 ml lemon juice, and lemon zest until smooth.
10 -
Once cooled, drizzle cookies with lemon glaze. Allow glaze to set before serving.