Moist Mayo Pie is a classic sweet custard pie that stays extra tender and moist thanks to mayonnaise in the filling. It’s simple, old-fashioned, and honestly a lot more normal-tasting than it sounds.
The flavor is vanilla-forward with a gentle tang from vinegar (think along the lines of chess pie or vinegar pie), and the texture sets up soft and creamy. I like this version because it slices clean once chilled, but it still eats like a custard instead of a stiff pudding.
This is one of my favorite pies for potlucks and holiday dessert tables because it uses pantry ingredients and doesn’t need fancy toppings. A little whipped cream and a dusting of nutmeg is plenty.
Why You’ll Love This Recipe
Simple pantry pie: The ingredient list is short and familiar, which makes this one easy to throw together without a special grocery run.
Soft custard center: The filling bakes up creamy and tender, especially after a good chill in the fridge.
Old-school flavor: That little hit of vinegar gives it the classic sweet-tangy custard vibe that reminds me of vintage diner pies.
No fussy topping needed: It’s great plain, but whipped cream and a pinch of nutmeg make it look finished with almost no effort.
Make-ahead friendly: This pie is actually better after it’s chilled, so it’s an easy dessert to bake earlier in the day (or the night before).
Ingredients You’ll Need
Crust
- Pie crust: I use a standard unbaked 9-inch crust here, homemade or store-bought. A basic crust is best since the filling is the star.
Filling
- Granulated sugar: Regular white sugar keeps the flavor clean and classic, like a true custard-style pie.
- All-purpose flour: Just a little helps the filling set so it slices neatly after chilling.
- Mayonnaise: Use full-fat mayo for the best texture and flavor. It sounds odd, but it bakes up mellow and gives the filling that soft, rich custard feel.
- Eggs: Eggs are what turn this into a real custard as it bakes. Large eggs are the easiest standard to stick with.
- Apple cider vinegar: This is the tang that makes the pie taste like an old-fashioned vinegar custard. Lemon juice works too if you want it a little brighter.
- Vanilla extract: Don’t skip it. Vanilla is what makes the filling taste like dessert instead of “mystery pie.”
- Fine salt: A small amount keeps the sweetness from tasting flat.
- Ground nutmeg: Nutmeg gives that familiar custard-pie smell and taste. I keep it light so it doesn’t take over.
Optional topping
- Whipped cream: I like a simple dollop on each slice, especially if you’re serving it chilled.
- Extra nutmeg: A quick dusting on top looks nice and leans into that classic custard flavor.
Recipe Instructions
- Preheat the oven: Heat the oven to 350°F. Place the unbaked crust in a 9-inch pie plate and crimp the edges.
- Mix the dry ingredients: In a mixing bowl, whisk the sugar and flour until evenly combined.
- Add the mayonnaise: Whisk in the mayonnaise until the mixture is smooth and no streaks remain.
- Add the eggs: Whisk in the eggs one at a time, mixing until fully blended after each addition.
- Add the flavorings: Whisk in the apple cider vinegar, vanilla, salt, and nutmeg until everything is well mixed.
- Bake: Pour the filling into the crust. Bake for about 40 to 50 minutes, until the top is lightly browned and the center is mostly set with a slight jiggle.
- Cool and chill: Cool on a rack for at least 1 hour, then refrigerate for 2 to 4 hours for cleaner slices.
- Serve: Serve chilled or at cool room temperature. Add whipped cream and a light dusting of nutmeg if you want.
Some of my tips!
This is the part that really makes a difference. If you only read one section, make it this one because this is where I share the little trick that helps the recipe turn out so well.
Recipe Tips & Tricks
Use full-fat mayo. Light mayo can make the filling set up a little differently, and the flavor can come through more. Full-fat bakes up mild and custardy.
Watch the crust edges. If your crust browns fast, cover the edge with foil after about 20 minutes. I do this a lot with store-bought crusts.
Don’t chase a totally firm center. The pie should still have a slight jiggle in the middle when it’s done. It keeps setting as it cools and chills.
Chill before slicing. This is the difference between neat wedges and a soft scoop. Give it at least a couple of hours in the fridge.
Swap lemon for a brighter tang. Lemon juice works in place of vinegar if you want the custard to taste a little fresher. The pie still tastes classic either way.
Make some touches!
There are plenty of easy ways to serve this depending on the occasion. Keep it simple, or add a few small touches to make it feel a little more special.
Serving Suggestions
- Whipped cream: A dollop on each slice is the easiest way to serve it. I like it best with lightly sweetened whipped cream, not the super-sweet kind.
- Nutmeg on top: Add a tiny dusting right before serving. It looks nice and gives it that old-school custard pie feel.
- Fresh berries: Strawberries, raspberries, or blueberries are great on the side. It’s a simple way to add something fresh to the plate.
- Coffee: This pie is really good with hot coffee or iced coffee. The custard-y sweetness works well with a bitter drink.
Save it for later
This section covers how to store leftovers and what parts of the recipe you can prepare ahead of time.
Storage and Make Ahead
Store leftovers covered in the fridge for up to 4 days. This pie is meant to be kept chilled, and it actually slices nicer the day after it’s baked.
You can make this recipe ahead and refrigerate it until you’re ready to serve. I usually wait to add whipped cream until the last minute so it doesn’t weep.
If you want to freeze it, freeze individual portions wrapped well and sealed in a container. Thaw in the fridge overnight before serving; the texture can be a little softer, but it still tastes good.
A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
Does mayo pie taste like mayonnaise?
No, not in the way you might expect. Once it bakes, the mayo just reads as richness and tenderness in the custard, not a sandwich flavor.
Can I use lemon juice instead of vinegar?
Yes. Lemon juice is a straight swap and gives the pie a brighter, slightly fresher tang. I like apple cider vinegar when I want the more old-fashioned flavor.
How do I know when the pie is done?
Look for a lightly browned top and a center that’s mostly set but still has a small jiggle. If it’s sloshing like liquid, it needs more time.
Why did my pie crack on top?
That usually happens if the pie bakes a little too long or the oven runs hot. It will still taste fine, and whipped cream covers a lot.
Do I have to refrigerate it before slicing?
I really recommend it. The filling firms up as it chills, and you’ll get cleaner slices instead of a soft custard scoop.
You might also like
Before you go, take a look at a few other recipes below the recipe card. They use similar ingredients in a different way and are worth saving too.
MORE DINNER RECIPES TO TRY
Moist Mayo Pie
INGREDIENTS
Crust
- 1 unbaked 9 inch pie crust.
Filling
- 1 cup granulated sugar
- 3 tbsp all purpose flour
- 1 cup mayonnaise
- 3 large eggs
- 2 tbsp apple cider vinegar
- 1 tsp vanilla extract
- ¼ tsp fine salt
- ¼ tsp ground nutmeg.
Optional topping
- whipped cream for serving
- extra nutmeg for dusting.
INSTRUCTIONS
Prep
- Heat oven to 350 F
- place unbaked crust in a 9 inch pie plate and crimp edges
- in a bowl whisk sugar and flour until evenly combined then whisk in mayonnaise until smooth
- whisk in eggs one at a time until fully blended then whisk in vinegar vanilla salt and nutmeg.
Bake and cool
- Pour filling into crust and bake until center is mostly set with a slight jiggle and top is lightly browned about 40 to 50 minutes
- cool on a rack at least 1 hour then refrigerate 2 to 4 hours for clean slices
- serve chilled or at cool room temperature with whipped cream if desired.
