Decadent Milk Chocolate Nutmeg Tart with Hazelnut Crust

Ingredients

• 1 pre baked hazelnut tart crust (see below)
• 1 1/4 cups heavy cream
• 1/2 teaspoon (about) freshly ground nutmeg
• 10 ounces really good quality milk chocolate, at least 30% cacao solids
• 2 tablespoons butter
• Barely sweetened whipped cream, for serving
• 2 1/2 ounces hazelnuts
• 3/4 cup plus 1 tablespoon all purpose flour
• 1 pinch each, salt and baking powder
• 6 tablespoons salted butter, at room temperature
• 1/4 cup sugar
• 1 large egg yolk, at room temperature