01 -
Set your oven to 355F (160C Fan/180C conventional). Grease and line two loose-bottomed round cake tins (20cm size) with non-stick parchment paper. Put them aside for now.
02 -
Grab a handheld mixer or use a stand mixer (paddle attachment). Mix up the butter with the sugar until the mixture looks mousse-like, smooth, and a bit paler. Blend in the vanilla afterward.
03 -
Pop the eggs in, one at a time, making sure to whisk completely smooth after each addition.
04 -
Carefully sift together the flour with the baking powder. Mix in the pistachio meal and salt. Gently fold everything until it just combines; don't overdo it.
05 -
Share the mixture evenly between your two tins. Smooth the tops with a spoon or spatula so they're even. Pop them in the oven and bake for 35 minutes, more or less, until a tester poked in the center comes out clean.
06 -
Pull the cakes out and leave them in their tins for about 15 minutes. Then, take them out and let them fully cool on a wire rack. If the outer green color lightens a bit while cooling, it's normal. Inside, the color will still pop!
07 -
While waiting, whip up the buttercream. Use your handheld or stand mixer (paddle attachment). Beat together the softened butter and icing sugar until it's pale and fluffy. Stir in pistachio cream, lemon juice, and salt. Adjust the lemon to taste.
08 -
Once cool, place one cake onto a flat dish. Add half the buttercream on top, either with a piping bag or a spoon, spreading evenly. Spread jam over this layer with a knife, but don't go right up to the edges. Place the second cake on top and cover with the remaining buttercream.
09 -
Decorate with raspberries, mint, and a sprinkle of chopped pistachios. Dig in and enjoy!