White Chocolate Pistachio - Yummy Gusto

Ingredients

• 275g plain flour
• 1 medium or large egg
• 125g softened unsalted butter
• 175g light brown soft sugar
• 1/2 tsp sea salt
• 1 tbsp cornflour
• 1 tsp vanilla extract
• 1/2 tsp baking soda (bicarbonate of soda)
• 200g roughly chopped unsalted pistachios
• 200g white chocolate chips