Mississippi mud pie is a deeply chocolatey, indulgent dessert with a crumbly crust, a fudgy brownie-like filling, and a glossy chocolate topping. This gluten-free version swaps the traditional wheat flour for a blend of almond and tapioca flours, creating a dense, rich texture that holds together beautifully. It’s perfect for anyone avoiding gluten but craving a truly decadent slice of Southern-style comfort.
Ingredients
- 1 ½ cups (180 g) gluten-free all-purpose flour (with xanthan gum)
- ½ cup (60 g) almond flour
- ¼ cup (30 g) tapioca starch
- ½ cup (100 g) granulated sugar
- ½ teaspoon salt
- ½ cup (115 g) cold unsalted butter, cubed
- 1 large egg yolk
- 2–3 tablespoons ice water
- 1 cup (225 g) unsalted butter, melted
- 2 cups (400 g) granulated sugar
- 4 large eggs
- 1 teaspoon vanilla extract
- ¾ cup (75 g) Dutch-process cocoa powder
- ½ teaspoon salt
- 1 cup (240 ml) heavy cream
- 8 oz (225 g) semisweet chocolate, chopped
- 2 tablespoons light corn syrup or honey (optional, for shine)
Instructions
- Make the crust: In a food processor, pulse the gluten-free flour, almond flour, tapioca starch, ½ cup sugar, and ½ teaspoon salt until combined. Add the cold butter cubes and pulse until the mixture resembles coarse meal. Add the egg yolk and pulse a few times. Add ice water, 1 tablespoon at a time, pulsing until the dough starts to clump. Turn out onto plastic wrap, flatten into a disk, wrap, and refrigerate for 30 minutes.
- Preheat the oven to 350°F (175°C). Press the chilled dough evenly into the bottom and up the sides of a 9-inch (23-cm) tart pan or pie dish. Prick the bottom with a fork. Bake for 15 minutes, until lightly golden. Set aside to cool slightly.
- For the filling, whisk the melted butter and 2 cups sugar in a large bowl. Add the eggs one at a time, whisking well after each. Stir in the vanilla.
- Sift the cocoa powder and ½ teaspoon salt over the wet mixture and fold until just combined. Pour the filling into the pre-baked crust.
- Bake at 350°F (175°C) for 30–35 minutes, until the edges are set but the center is still slightly jiggly. A toothpick inserted 2 inches from the edge should come out with moist crumbs. The internal temperature of the egg-based filling should reach 160°F (71°C) as the safe minimum per USDA FSIS. Let cool completely on a wire rack.
- For the ganache, heat the heavy cream in a small saucepan until steaming. Pour over the chopped chocolate and let sit for 2 minutes. Stir until smooth. Add corn syrup if using. Pour the ganache over the cooled pie and spread evenly.
- Refrigerate the pie for at least 1 hour to set the ganache. Serve chilled or at room temperature.
Tips
- If your gluten-free flour blend doesn’t include xanthan gum, add ½ teaspoon to the crust dry ingredients; otherwise the crust may be crumbly.
- Use Dutch-process cocoa for a deeper, less acidic chocolate flavor; natural cocoa works but will taste slightly sharper.
- For a cleaner slice, chill the pie for at least 2 hours before cutting, and use a sharp knife dipped in hot water and wiped dry between cuts.
- Don’t overbake the filling—it should be fudgy, not cakey. The center will firm up as it cools.
Serving Suggestions
Serve slices of Mississippi mud pie with a dollop of lightly sweetened whipped cream or a scoop of vanilla bean ice cream. A drizzle of salted caramel or a sprinkle of flaky sea salt on top enhances the chocolate. For a coffee-shop feel, pair with a strong espresso or a cold glass of milk.
Variations
- Add ½ cup (85 g) of chopped pecans or walnuts to the filling for crunch.
- Swap the semisweet chocolate for dark chocolate (70% cacao) for a more intense, less sweet pie.
- Use a gluten-free Oreo-style cookie crust instead of the pastry crust: combine 1 ½ cups (180 g) crushed cookies with 5 tablespoons (70 g) melted butter, press into the pan, and chill before filling.
- For a dairy-free version, use vegan butter, coconut cream, and dairy-free chocolate; the texture will be slightly softer but still delicious.
Storage and Reheating
Store leftover pie covered in the refrigerator for up to 4 days. The crust may soften slightly over time. To serve, let it sit at room temperature for 15–20 minutes for the best flavor. If you prefer it cold, serve straight from the fridge. You can freeze the pie (without the ganache) for up to 2 months; wrap tightly in plastic and foil. Thaw overnight in the refrigerator, then add the ganache fresh if desired. Reheat individual slices in the microwave for 15 seconds only if you want a warm, gooey texture—otherwise, serve chilled.
Frequently Asked Questions
Can I make this pie without a food processor? Yes, you can cut the butter into the flour mixture using a pastry cutter or your fingertips. Just work quickly to keep the butter cold.
Why is my crust cracking? The dough may be too dry. Add a little more ice water, 1 teaspoon at a time, until it holds together when pinched. Also, avoid overworking the dough.
Can I use a regular pie dish instead of a tart pan? Absolutely. A 9-inch pie dish works fine; just press the crust up the sides and adjust baking time by a few minutes if the dish is deeper.
How do I know when the filling is done? The edges should be set and the center should have a slight jiggle. A thermometer inserted into the center should read 160°F (71°C) for food safety.
Can I make this ahead of time? Yes, the pie can be made a day ahead and stored in the refrigerator. Add the ganache after the pie has cooled, then chill overnight.
What if I don’t have Dutch-process cocoa? Use natural cocoa powder; the taste will be slightly more acidic, but the pie will still be delicious. You may want to add a pinch of baking soda to neutralize the acidity, though it’s not necessary.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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