Ready in 4 hours (includes reduction & cooling) · Serves 8 · Technique: Reduction & Water Pie Method · Storage: Refrigerator for 5 days.
Some desserts are elegant classics, and others are pure, chaotic science experiments that somehow turn into magic. This Mountain Dew Pie falls firmly into the second category. It's in the same family as The Ultimate Baja Blast Pie, which pushes citrus soda into bold, tropical territory, and the Ultra-Moist Mountain Dew Cake with Citrus Glaze, a fluffy Bundt cake soaked in hot soda syrup. Each one takes Mountain Dew and transforms it into something surprisingly craveable. It is a fascinating twist on the depression-era "Water Pie," where water is replaced by a concentrated reduction of Mountain Dew soda. The result is a neon-yellow, intensely sweet, citrusy custard pie that tastes like a concentrated blast of lemon-lime zest. It is a labor of love-boiling down two liters of soda takes patience-but the resulting texture is sticky, gooey, and surprisingly delicious.
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The most critical part of this recipe is measuring your reduction. You must boil the 2 liters down to exactly 1.5 cups (12 oz). If you have too much liquid, the pie won't set; too little, and it will be rubbery. Pour the hot reduction into a liquid measuring cup to verify before assembling the pie!
A Neon Green Culinary Adventure
This pie is definitely a conversation starter. It essentially creates a custard filling right inside the crust without mixing. By layering the liquid reduction, a flour-sugar mixture, and butter pats, the oven does the work of transforming the ingredients into a cohesive filling. The texture ends up somewhere between a pecan pie (without the nuts) and a chess pie, with a flavour that is unmistakably, intensely Mountain Dew.
Why You'll Love This Recipe
- Intense Citrus Flavour: Because we reduce the soda, the lemon-lime flavour is concentrated and punchy, not watery.
- Fascinating Technique: Watching the flour, sugar, and liquid transform into a solid pie without stirring is culinary magic.
- Nostalgic Fun: It's a bright, bold, fun dessert that brings out the kid in everyone.
- Crispy, Buttery Top: The butter melting over the sugar create a slightly crusty, caramelized top layer that contrasts with the gooey center.
Ingredients
Here is what you need for this unique pie.
For the Crust
- Pie Crust: One frozen deep-dish pie crust. Keep it frozen until the moment you pour the filling in!
For the Filling
- Mountain Dew: You need 2 liters of the soda. It doesn't matter if it's flat or fresh, as the carbonation boils off anyway.
- Sugar: Granulated sugar to sweeten the custard base.
- Flour: All-purpose flour is the thickening agent that sets the syrup.
- Butter: Unsalted butter, cut into small cubes.
How to Make Mountain Dew Pie
This recipe requires a long prep time for the reduction, but the assembly is fast.
Step 1: Make the Mountain Dew Reduction
Pour the 2 liters of Mountain Dew into a large pot. Simmer over medium heat, stirring occasionally. You need to let this bubble away for 2 to 3 hours.
You are looking to reduce the volume by about 65%. You need to end up with 12 fluid ounces (1.5 cups) of thick, syrupy yellow liquid. Be patient! Once reduced, verify the amount in a measuring cup.
Step 2: Preheat and Prep
Preheat your oven to 395°F (200°C).
Mix the ⅔ cup sugar and 8 tablespoons (which is ½ cup) of flour together in a small bowl. Dice the butter into small cubes.
Step 3: Assemble the Layers (Do Not Stir!)
Take your frozen pie crust out of the freezer. Pour the 12 oz of warm Mountain Dew reduction directly into the crust.
Sprinkle the sugar and flour mixture evenly over the surface of the liquid. Do not stir. It will look like dry powder sitting on top of syrup. This is correct.
Scatter the diced butter pieces evenly over the top of the flour mixture.
Step 4: The Two-Stage Bake
Cover the edges of the pie crust with a pie shield or strips of aluminum foil to prevent burning.
Carefully place the pie in the oven (it will be very liquidy!). Bake at 395°F for 30 minutes.
Reduce the oven temperature to 340°F (170°C) and bake for another 30 minutes.
Step 5: Cool and Chill
Remove the pie from the oven and remove the foil shield. The center will still be jiggly and look like "hot sticky plasma." This is normal.
Let the pie cool completely on a wire rack or stone countertop until it reaches room temperature. Then, cover it loosely and refrigerate for at least 6 hours, or overnight. The chilling time is essential for the pie to set into a sliceable consistency.
Common Mistakes to Avoid
- Stirring the Filling: This is the fatal error of water pies. Once you sprinkle the dry ingredients onto the wet ingredients, put down the spoon! Stirring will clump the flour and prevent the layers from forming correctly.
- Under-Reducing the Soda: If you get impatient and use 2 or 3 cups of reduced soda, the ratio of flour will be off, and you will have a soda soup that never sets. Measure precisely.
- Cutting Warm: This pie needs cold temperatures to solidify. If you cut it warm or even at room temperature, it will likely be too runny.
Tips and Tricks for Success
- Use a Deep Dish Crust: A standard shallow pie crust might overflow. A deep-dish frozen crust gives you enough room for the bubbling action in the oven.
- Watch the Reduction: Toward the end of the 2 hours, the soda reduces faster as there is less volume. Keep an eye on it so it doesn't burn or turn into hard candy.
- Baking Sheet: Place the pie pan on a rimmed baking sheet in the oven. If the sugary filling bubbles over, this saves your oven floor from a sticky nightmare.
If you love soda-based desserts and want to keep exploring, that Mountain Dew Cake is a total game-changer - soft, bright, and great for parties. And if you're in the mood for something even wilder, the Baja Blast Pie delivers neon color and tropical-lime intensity in a no-bake format that's just as fun.
Variations
- Different Sodas: This technique works with almost any sugary soda! Try Dr. Pepper, Orange Crush, or Root Beer for different flavors.
- Citrus Zest: Add a teaspoon of fresh lemon or lime zest to the sugar/flour mixture for a fresher citrus punch.
- Cookie Crust: While the recipe calls for a standard pastry crust, a pre-made graham cracker crust adds a nice texture change.
How to Serve
This pie is very sweet and intense.
- Slice it into small wedges.
- A giant dollop of unsweetened whipped cream is highly recommended to cut through the sugar and syrup intensity.
- Serve chilled.
Make Ahead and Storage
- Make Ahead: Because of the long chill time, this is actually best made the day before you plan to serve it.
- Storage: Store the pie, covered with plastic wrap or foil, in the refrigerator for up to 5 days.
- Freezing: I do not recommend freezing this pie, as the texture of the custard can become strange upon thawing.
Recipe Notes / What I Learned
The first time I made this, I was convinced it wouldn't work. The flour just sat on top! But as the butter melts and the liquid boils up through the dry ingredients, it creates a crusty top and a smooth, gel-like interior. It's fascinating chemistry. Just be prepared for a very sticky texture-it's definitely a "knife and fork" dessert.
Nutrition Snapshot
Estimated Nutrition Per Slice: ~380 calories · 3g protein · 65g carbs · 14g fat (This is an estimate. This is a high-sugar dessert due to the concentrated soda!)
Mountain Dew Pie
Equipment
- Saucepan
- Small bowl
- Aluminum foil
Ingredients
Group: Ingredients
- 2 liters Mountain Dew (to make 12 oz. reduction)
- 1 frozen pie crust in pan
- ⅔ cup sugar
- 8 tablespoon flour
- 6 tablespoon butter diced
Instructions
- To make a Mtn Dew reduction, simmer 2 liters of Mtn Dew over medium heat, stirring occasionally, for 2-3 hours. You should reduce the volume by at least half, and up to 65% or so (you need 12 oz of liquid total). It doesn't matter if the Mtn Dew is fresh, since you'll lose all the carbonation anyway.
- Preheat oven to 395°F.
- Pour 12 oz of the Mtn Dew reduction into the pie crust, while the crust is still frozen.
- Mix the sugar and flour, then sprinkle the mix evenly over the surface of the Mtn Dew reduction. Yes, it's powder on syrup.
- As best you can, scatter the diced butter evenly over the flour/sugar mix.
- Cover edges of crust with foil.
- Carefully move into oven. Bake for 30 min.
- Reduce temp to 340°F, then bake for another 30 min.
- Remove from oven, and take off foil. Pie filling is now a hot sticky plasma, so be careful. Fully cool, preferably on a stone or tile countertop.
- Once fully cooled, chill covered in fridge for 6-24 hours.
Notes
Nutrition
FAQs
Can I use Diet Mountain Dew?
No. The sugar in the regular soda is chemically necessary for the texture and syrup consistency. Artificial sweeteners will not reduce and thicken in the same way.
My pie is still runny after chilling. Why?
This usually means the soda wasn't reduced enough (too much liquid ratio) or the oven wasn't hot enough. It can also happen if the pie wasn't chilled long enough. It should be tacky but hold its shape.
Why 395 degrees and 340 degrees?
This specific recipe relies on precise heat chemistry. However, if your oven only moves in 5-degree increments, 400°F and 350°F are close enough approximations that will still work.
Is the Mountain Dew Baja Blast Pie real?
Yes - Baja Blast Pie is a real recipe that went viral online after fans began experimenting with "water pie"-style desserts. While it's not an official Taco Bell product, the pie uses Mountain Dew Baja Blast to create a bright, citrusy, custard-like filling that tastes shockingly good.
What is the rarest MTN Dew flavor?
Some of the rarest Mountain Dew flavors are limited releases like Typhoon, Pitch Black II, and older Baja Blast collector editions that only appeared for a single summer. Region-exclusive flavors, such as certain Japan-only Dew varieties, also rank among the rarest.
Is the Baja Blast pie out?
There's no official store-bought version of Baja Blast Pie. The "pie" people see online comes from homemade recipes that use reduced Mountain Dew Baja Blast or similar citrus sodas. So while the dessert is real, it's something you make at home - not something sold by Taco Bell or supermarkets.
Is the Baja Blast pie good?
Surprisingly, yes - if you like very sweet, citrusy desserts. The reduction concentrates the lemon-lime flavor, and the water-pie baking method turns it into a sticky, gooey custard. It's intense, nostalgic, and definitely a fun dessert for Mountain Dew fans.
