Decadent Milk Chocolate Nutmeg Tart with Hazelnut Crust

Ingredients

• 1 pre baked hazelnut tart crust (see below)
• 1.25 cups heavy cream
• 0.5 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
• 2.5 ounces hazelnuts
• 0.75 cup plus 1 tablespoon all purpose flour
• 1 pinch each, salt and baking powder
• 6 tablespoons salted butter, at room temperature
• 0.25 cup sugar
• 1 large egg yolk, at room temperature