It took way longer than I thought. We use our thumbprint-style doughnut as the shell. We dress the shell with our vanilla-buttermilk glaze and a coating of chocolate glaze. We sprinkle our white chocolate pretzel crumbs over the top. The filling has evolved. Now we make a rich custard and lighten it with whipped cream. The filling crests the top of the doughnut, revealing a glimpse of the decadent indulgence.