Pistachio cookies

1. Preheat your oven to 180C/350F and line a baking tray with greaseproof paper.
2. Place the butter and sugars into a bowl and beat until pale and fluffy, approximately 4 minutes.
3. Add in the egg and beat until well combined and fluffy.
4. Pour in the vanilla extract and beat until just combined.
5. Add in your pistachio paste and beat until combined and smooth.
6. In a separate bowl, place the flour, baking powder and salt and stir.
7. Toss into your pistachio butter mixture and beat until just combined and smooth.
8. Scoop up a portion of dough and place onto your baking tray with 1 1/2 inches between each cookie.
9. Bake for 10 minutes, remove from the oven and press the center with a flat bottomed glass.
10. Return to the oven for 5 minutes or until lightly matt looking.
11. Allow to cool for 5 minutes on the tray before placing on a cooling rack.

Pistachio buttercream

1. Place the butter and sugar into a bowl and beat on medium with an electric mixer until pale and fluffy, approximately 4 minutes.
2. Fold in the pistachio paste until smooth.
3. Take a heaped tablespoonful of the buttercream and smear over the center of the cookie.
4. Drizzle over a little of the pistachio paste.
5. Serve up!