Poppy seed and apple cake

Cake

• 1 lemon, zest only, no white pith
• 1 orange, zest only, no white pith
• 100 g walnuts
• 250 poppy seeds
• 300 - 350 g Golden Delicious apples, peeled and cored (approx. 3 apples)
• 250 unsalted butter, softened and cut into pieces
• 6 eggs
• 250 caster sugar
• 1 tsp gluten free baking powder (see Tips)
• 60 g gluten free cornflour
• 1 tsp natural vanilla extract

Chocolate ganache

• 100 g dark chocolate, gluten free, broken into pieces
• 80 g pouring (whipping) cream
• slivered almonds, for decorating