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A slice of black bottom oatmeal pie with a golden crust, adorned with a dollop of whipped cream, rests on a stack of plates.
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5 from 1 vote

Black Bottom Oatmeal Pie

This black bottom oatmeal pie is a wonderful dessert with a buttery crust and ginger-spiced oatmeal filling, along with a velvety chocolate ganache.
Prep Time20 minutes
Cook Time1 hour 20 minutes
Chilling Time4 hours
Total Time5 hours 40 minutes
Course: Dessert
Cuisine: American
Keyword: Christmas, pie, Thanksgiving
Servings: 8 slices

Ingredients

For the Pie Crust:

For the Chocolate Ganache:

For the Filling:

Instructions

Make the Pie Crust:

  • In a large bowl, whisk together the flour, sugar, and salt.
  • Add the cold butter cubes and use a pastry cutter or a food processor to cut the butter into the flour until the mixture resembles coarse crumbs with pea-sized pieces of butter.
  • In a small bowl, combine the ice water and apple cider vinegar.
  • Gradually add the liquid to the flour mixture, 1 tablespoon at a time, mixing just until the dough comes together. Do not overwork.
  • Form the dough into a disk, wrap it in plastic wrap, and refrigerate for at least 1 hour.
  • On a lightly floured surface, roll out the chilled dough into a 12-inch circle.
  • Transfer the dough to a 9-inch pie dish, gently pressing it into the bottom and sides. Trim the excess, leaving a 1-inch overhang.
  • Fold the overhang under and crimp the edges. Chill the crust in the refrigerator for 30 minutes.

Bake the Pie Crust:

  • Preheat the oven to 375°F.
  • Line the chilled crust with parchment paper and fill with pie weights or dried beans.
  • Bake for 15 minutes, then remove the parchment and weights.
  • Brush the crust with the egg wash (1 egg beaten with 1 tablespoon water) and bake for another 5 minutes. Set aside to cool.

Make the Chocolate Ganache:

  • In a heatproof bowl, combine the chopped dark chocolate and heavy cream.
  • Melt the mixture over a double boiler or microwave in 20-second intervals, stirring until smooth and glossy.
  • Spread the chocolate evenly over the bottom of the cooled pie crust. Chill in the refrigerator while preparing the filling.

Make the Oatmeal Filling:

  • Preheat the oven to 400°F.
  • Add the rolled oats to a large rimmed baking sheet. Bake for 8 to 10 minutes, stirring occasionally until golden and fragrant. Set aside to cool.
  • In a large bowl, whisk together the dark brown sugar, melted butter, salt, and ground ginger.
  • Add the corn syrup, apple cider vinegar, and vanilla extract, mixing until smooth.
  • Beat in the eggs, one at a time, until fully incorporated.
  • Fold in the toasted oats.
  • Pour the oatmeal filling over the chilled chocolate layer in the pie crust.

Bake the Black Bottom Oatmeal Pie:

  • Preheat the oven to 350°F.
  • Place the pie on a baking sheet and bake for 45 to 55 minutes, or until the filling is set around the edges but still slightly jiggly in the center.
  • Let the pie cool completely on a wire rack.
  • Refrigerate for at least 2 hours before serving to allow the layers to set properly.
  • Slice the pie and serve at room temperature. Garnish with whipped cream, a drizzle of melted chocolate, or a sprinkle of flaky sea salt if desired.

Notes

Smooth chocolate layer: Melt the chocolate gently with a splash of heavy cream to create a smooth, glossy ganache.
Cool the ganache layer: Allow the chocolate ganache to cool and set slightly before adding the oatmeal filling to prevent the layers from mixing.
Achieve a caramel-like filling: Use a combination of brown sugar and corn syrup or maple syrup for a chewy, caramel-like filling that complements the chocolate. Don’t overmix to avoid air bubbles.
Don’t overbake: Bake the pie until the filling is set around the edges but still slightly jiggly in the center. It will continue to set as it cools, ensuring a chewy, gooey texture.
Cool completely: Let the pie cool completely to allow the layers to set properly. Refrigerate for cleaner slices and a more distinct black bottom.
Serving temperature: I love it warmed up slightly but it's also good served at room temperature so the chocolate layer is soft and the oatmeal filling is perfectly chewy.

Nutrition

Calories: 824kcal | Carbohydrates: 102g | Protein: 11g | Fat: 43g | Saturated Fat: 25g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 12g | Trans Fat: 1g | Cholesterol: 191mg | Sodium: 558mg | Potassium: 302mg | Fiber: 4g | Sugar: 59g | Vitamin A: 1191IU | Vitamin C: 0.04mg | Calcium: 79mg | Iron: 5mg

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