Sufganiyot

• 1/2 cup warm water (105° to 110°F)
• 2 (1/4-ounce) envelopes active dry yeast
• 1 1/2 cups warm whole milk (105° to 110°F)
• 5 tablespoons unsalted butter, melted
• 1/4 cup granulated sugar
• 2 teaspoons kosher salt
• 2 large eggs
• 6 1/2 cups (27 5/8 ounces) all-purpose flour, divided, plus 1 to 2 tablespoons more as needed, plus more for work surface and baking sheets

Cardamom Pastry Cream

• 2/3 cup granulated sugar
• 2 tablespoons all-purpose flour
• 2 tablespoons cornstarch
• 2 1/2 teaspoons ground cardamom
• 1/8 teaspoon kosher salt
• 2 large eggs
• 2 cups heavy whipping cream
• 1 teaspoon vanilla extract
• 2 tablespoons unsalted butter, softened

Additional Ingredients

• Vegetable oil
• 2 teaspoons ground cinnamon
• 1/2 cup granulated sugar