Gluten-free ginger crunch slice

Ingredients

• 1½ tsp ground ginger
• 1 tbsp ground ginger
• 55 gm caster sugar
• 75 gm unsalted butter, chopped
• 1 tsp gluten-free baking powder
• 100 gm (¾ cup) gluten-free plain flour
• 90 gm (¾ cup) almond meal
• 125 gm unsalted butter, chopped and softened
• 110 gm (½ cup) brown sugar
• Ginger icing
• 90 gm (¼ cup) golden syrup
• 240 gm (1½ cups) pure icing sugar, sifted
• Ginger syrup
• 2 tbsp julienned ginger