Ingredients

• 3 1/2 tablespoons unsalted butter
• 1 cup all-purpose flour
• 1/4 cup cornstarch
• 2 tablespoons sugar
• 1 teaspoon vanilla extract
• 5 eggs
• 1 teaspoon baking powder
• vegetable oil, for deep-frying (corn, peanut)
• 1 1/2 cups confectioners' sugar
• 1 lemon, juice of, to 2

Instructions

1. For the crullers, bring 1 1/4 cups water and the butter to a boil in a saucepan.

2. Remove from the heat. Mix the flour and the cornstarch together and stir into the liquid until to a smooth ball forms.

3. Return the pan to the stove and stir over low heat until a white film appears on the bottom of the pan. Transfer the mixture to a mixing bowl.

4. Combine with the sugar, vanilla, eggs, and baking powder, using an electric mixer.

5. Cut parchment paper into 3-inch squares. Spread them out on a clean work surface and grease them well.

6. Put the dough into a pastry bag with a large serrated spout and squeeze a circle of about 2 inches on each piece of parchment paper.

7. Heat the oil to 370F in a deep-fryer or in a large saucepan. The oil needs to be hot enough to sizzle a bread crumb.

8. Let the crullers glide into the oil by carefully turning the parchment squares upside down and gently rolling up the two opposite edges. Fry only a few crullers at a time. They should be golden brown and puffy. Remove from the oil and drain on paper towels.

9. For the frosting, mix the confectioners' sugar with the lemon juice until smooth. Add a few drops of water if necessary.

10. Spread the frosting on the warm crullers and allow them to set at room temperature. Serve within a few hours.