• 3 Tbsp. unsalted butter, melted, plus more for greasing the pans
• ¾ cup [150 g] granulated sugar, plus more for sprinkling in the pans and coating the cruffins
• All-purpose flour, for dusting
• 1 recipe Cheater's Croissant Dough
• 1 cup [240 g] whole milk
• 1 cup [240 g] heavy cream
• 5 egg yolks, at room temperature
• 1¼ cups [250 g] granulated sugar
• ¼ cup [35 g] cornstarch
• 1 Tbsp. unsalted butter
• 2 tsp. pure vanilla extract