Ingredients: 100g pistachio nuts (plus 30g extra for garnishing) 3 tsp lime zest (from about 3 limes) 125g castor sugar 110g plain flour 50g almond meal 1½ tsp baking powder ¼ tsp salt 150g unsalted butter, cubed, then left to soften 3 large eggs, at room temperature ½ tsp almond (or 1 tsp vanilla) extract […]