01 -
Turn the oven on and preheat it to 350°F (175°C). Cover two baking sheets with parchment paper.
02 -
In a bowl of medium size, combine the flour, salt, and baking powder with a whisk, then set it aside for later.
03 -
Use a big bowl to beat the soft butter and sugar together until it's fluffy and pale, about 2-3 minutes. Mix in the egg, vanilla, and lemon zest to finish.
04 -
Slowly mix the dry ingredients into the butter mixture, just until it's combined. Avoid overworking it.
05 -
Sprinkle some flour on your surface. Flatten the dough to about 1/4 inch thickness and cut out circles using a round cutter. Place them on the baking sheets.
06 -
Pop the cookies into the oven for 8-10 minutes, just until the edges start to look golden. Let them cool completely on a wire rack.
07 -
Whip up the softened butter in a large bowl until it’s creamy and smooth.
08 -
Mix in the powdered sugar, a little at a time, until it's all blended in.
09 -
Stir in the ground lavender, cream, and vanilla. For a light purple color, add some food coloring if you like.
10 -
Whisk the mixture further for a couple of minutes until it feels airy and smooth.
11 -
When the cookies are totally cooled down, spread or pipe on the lavender buttercream onto one side of half the cookies.
12 -
Place a second cookie on top of the frosted ones and gently press to create little sandwiches.
13 -
Pipe a swirl of leftover buttercream on top of each cookie sandwich for some decoration.
14 -
Complete each cookie with a small lemon slice and a sprig of lavender for a fancy touch.