Hazelnut Cookies with White Chocolate

Ingredients

• 400 g all purpose flour
• 1/4 tsp salt
• 1/2 tsp cinnamon
• 1/2 tsp nutmeg
• 70 g ground hazelnuts
• 1/2 tsp baking powder
• 200 g unsalted butter, room temperature
• 100 g granulated sugar
• 1 whole egg
• 2 egg yolks
• 1 tsp vanilla extract
• 150 g white chocolate, chopped
• 20 ml heavy cream, warmed
• 50 g cream cheese
• 50 g powdered sugar
• 1/2 tsp vanilla essence
• 100 g dark chocolate, melted
• sprinkles of your choice