Tangy lemon and juniper bars - Great British Chefs

Ingredients

• 1 tsp juniper berries
• 1/2 tsp coriander seeds
• 1/4 tsp fine sea salt
• 110g of unsalted butter, melted
• 30g of caster sugar
• 125g of plain flour
• 225g of caster sugar
• 45g of plain flour
• 3 eggs, lightly beaten
• 1 1/2 tsp lemon zest, finely grated
• 120ml of lemon juice, freshly squeezed