Tahini and White Chocolate Chunks Cookies - Petites Choses

Ingredients

• 170 grs good quality white chocolate, roughly chopped
• 225grs White rye flour , (1cup and 3/4 cups)
• 1/2tsp baking soda
• 1/2tsp baking powder
• 125grs softened butter, cubed (not melted)
• 100grs dark brown sugar, (1/2 cup)
• 125grs cup tahini , (1/2 cup)
• 1tsp fine salt
• 1tbsp vanilla extract
• 1 large egg
• 1/4 cup raw sesame seeds
• 1/4 cup Demerara sugar