- 1 (9-inch) baked pie shell
- 2 cups well-shaken buttermilk
- 2/3 cup Grade B maple syrup
- 6 large egg yolks
- 1/4 cup all-purpose flour
- 3 tablespoons maple sugar
- 1 teaspoon vanilla
- 1/4 teaspoon salt
- Accompaniment: lightly sweetened whipped cream
- Preheat oven to 325°F. Put pie shell (in pie plate) in a shallow baking pan.
- Whisk together remaining ingredients in a bowl until just combined and pour three fourths of custard into shell. Carefully put pan in middle of oven and pour in remaining custard with a cup.
- Bake until just set in center, about 55 minutes, then transfer pie to a rack to cool slightly. Serve warm or at room temperature.