Vanilla Bean Pumpkin Flan with Golden Pumpkin Seed Brittle

sugar (if you have vanilla sugar, use that, and only use half a vanilla bean in the recipe)

heavy cream

whole milk

whole large eggs plus 1 large egg yolk

solid-pack pumpkin (1¾ cups)

pure vanilla extract

vanilla bean, split and sccraped

ground cinnamon

ground ginger

ground nutmeg

salt

fresh pumpkin seeds, rinsed well, dried, and roasted, or pepitas (shelled pumpkin seeds. They're green and can be found in most supermarkets and come already roasted.)

sugar

water