Preheat oven to 400°F (200°C). Line a 9x5 inch loaf pan with parchment paper, leaving an overhang.
Beat softened cream cheese and sugar until smooth and creamy.
Add eggs one at a time, mixing thoroughly after each addition.
Reduce mixer speed to low, pour in heavy cream, and mix.
Add vanilla (if using), salt, and flour. Mix until just combined.
Pour batter into the prepared pan and place it on a baking sheet.
Bake for 50-60 minutes, or until deeply browned and center is slightly jiggly.
Cool completely in pan at room temperature, then refrigerate for at least 4 hours or overnight.
Notes
The top should be deeply browned, almost burnt. Don't overmix the batter. For longer storage, freeze for up to 3 months. Serve with fresh berries, whipped cream, or a chocolate drizzle.
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