1 cup (2 sticks) unsalted butter, softened
1 cup sugar
1 large egg, room temperature
1 teaspoon vanilla extract
2 1/3 cups all-purpose flour
1/4 teaspoon salt
EGG WASH:
1 large egg
1 teaspoon water
Directions
1. Preheat the oven:
Preheat the oven to 175°C (350°F). Butter and flour a 9-inch (24cm) springform pan and line the bottom with parchment paper.
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