Baked French Toast with Pecan Crumble

INGREDIENTS

• 1/2 teaspoons ground nutmeg
• 2 cups heavy cream
• 1 1-pound loaf challah, sliced 1" thick
• 2 cups whole milk
• 4 large eggs
• 1/2 teaspoons kosher salt
• 1/2 cup sugar
• 1 teaspoon vanilla extract
• Unsalted butter, room temperature (for baking dish)
• 2 tablespoons light brown sugar
• 1/2 cup pecans
• 4 large egg yolks
• 1/2 teaspoons ground cinnamon
• 2 tablespoons chilled unsalted butter, cut into pieces