Ice Queen Cake

Hemisphere Sponge

• 300 g unsalted butter, soft, plus extra for greasing
• 300 g caster sugar
• 5 large eggs
• 300 g self-raising flour
• 1 tsp baking powder
• 2 oranges, finely grated zest only
• 30 g orange juice, freshly squeezed

Round Sponge

• 120 g unsalted butter, soft
• 120 g caster sugar
• 2 large eggs
• 120 g self-raising flour
• ¼ tsp baking powder
• 1 orange, finely grated zest only
• 15 g orange juice, freshly squeezed

Icing

• blue food colouring gel
• 1000 g fondant icing
• water, for brushing
• 300 g unsalted butter, soft
• 600 g icing sugar
• 1 orange, finely grated zest only
• 1 orange, juice only
• 100 g blueberry jam (see tip)
  of blackcurrant jam (see tip)

Decoration

• silver decorating balls and sparkling snowflakes
• silver edible glitter