Bolo de Amêndoa Recipe (Portuguese Almond Cake) - Great British Chefs

Ingredients

• 250g of ground almonds
• 170g of unsalted butter, softened, plus extra for greasing
• 4 large eggs, separated
• 250g of caster sugar
• 1/2 tsp sea salt
• 1/2 tsp ground cinnamon
• 1 lemon, zested
• 1 tbsp of plain flour, for dusting (use a gluten-free flour blend if required)
• flaked almonds, for sprinkling
• icing sugar, for dusting