Moist Mayo Pie is a rich chocolate pie with a fudgy, brownie-like filling baked right in a pie crust. It’s one of those old-school desserts that looks simple, but it eats like a serious chocolate fix.
The mayonnaise might sound odd, but it gives the filling a super moist, smooth texture and keeps it from turning dry or cakey. For me, it lands right between a classic chocolate cream pie and a dense chocolate custard.
I like serving this at room temperature for the softest texture, or chilled when I want cleaner slices. A little whipped cream on top is all it needs, especially after a big dinner.
Why You’ll Love This Recipe
Real fudge texture: The filling bakes up thick and glossy, more like a brownie in a crust than a fluffy pudding pie.
No butter needed: The mayonnaise does the heavy lifting for moisture and richness, so you don’t have to mess with melting or creaming butter.
Quick to throw together: It’s a simple whisk-and-pour situation, which is exactly what I want when I’m making dessert on a busy day.
Chocolate flavor you can tweak: Coffee makes the chocolate taste deeper, but hot water works too if you want it more mild.
Easy to serve: It looks great with just powdered sugar, or you can dress it up with whipped cream and chocolate shavings.
Ingredients You’ll Need
Crust
- Pie crust: I use a regular unbaked 9-inch crust here (store-bought or homemade). A standard flaky crust is perfect since the filling is rich.
Dry Mix
- Granulated sugar: This is the main sweetness and it also helps that shiny top happen as the pie cools.
- Unsweetened cocoa powder: Use a cocoa you like the taste of because it’s the whole chocolate base here. Natural or Dutch-process both work fine in my experience.
- All-purpose flour: Just enough to give the filling structure so it slices cleanly after it cools.
- Baking powder: A little lift keeps it from baking up too dense and heavy.
- Fine salt: Don’t skip it. Chocolate desserts taste flatter without a bit of salt.
Wet Mix
- Eggs: These set the filling and give it that custardy-fudgy texture once baked.
- Mayonnaise: Full-fat is the way to go here. Light mayo can work, but the pie won’t be as rich and moist.
- Vanilla extract: This rounds out the chocolate flavor and makes the filling taste more like a finished dessert.
- Hot coffee or hot water: Hot coffee deepens the chocolate, but hot water is totally fine if you want the flavor simpler (or you don’t drink coffee).
Optional Toppings
- Whipped cream: My favorite topping for this pie, especially if you serve it chilled.
- Powdered sugar: A quick dusting looks nice and keeps things simple.
- Chocolate shavings: Good if you want it to look a little more special without doing much extra.
Recipe Instructions
- Preheat the oven: Heat the oven to 350 F. Set the unbaked pie crust in a 9 inch pie plate, crimp the edges, and place the pie plate on a baking sheet.
- Mix the dry ingredients: In a mixing bowl, whisk the sugar, cocoa powder, flour, baking powder, and salt until it looks uniform and there are no obvious cocoa lumps.
- Mix the wet ingredients: In a second bowl, whisk the eggs, mayonnaise, vanilla, and hot coffee (or hot water) until smooth.
- Combine the batter: Whisk the wet mixture into the dry mixture just until combined. Stop once the batter looks glossy and you don’t see dry pockets.
- Bake: Pour the filling into the crust and smooth the top. Bake for 30 to 40 minutes, until the center is set and a toothpick inserted near the center comes out with a few moist crumbs.
- Cool: Let the pie cool for at least 2 hours before slicing so it sets up for clean cuts and the best texture.
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 mayonnaise. That’s what gives the filling its rich, moist texture. Light mayo works in a pinch, but the pie usually bakes up a little less fudgy.
Whisk the cocoa really well. Cocoa likes to clump, and those little dry spots will show up in the baked filling. I whisk the dry mix until it looks like one even color.
Hot water is fine. Coffee brings out more chocolate flavor, but hot water keeps it mild and still tastes like a classic chocolate pie. Either one works with the same bake time.
Watch the crust edges. If the crust is getting too dark, cover just the edges with foil during the last 10 to 15 minutes of baking.
Don’t rush the cool time. The pie keeps setting as it cools, and that’s what helps you get neat slices. If you cut it too soon, it will be a little loose in the center.
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 simple spoonful on each slice is my go-to. It’s especially nice if you serve the pie chilled.
- Powdered sugar: Dust the top right before serving. It’s low effort and looks clean and classic.
- Ice cream: Vanilla ice cream on the side works well if you’re serving the pie at room temperature. It turns it into more of a plated dessert.
- Fresh berries: Strawberries or raspberries are good here. I like them on the plate, not piled on top, so the pie stays neat.
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 slices even cleaner once it’s chilled, so it’s an easy one to keep in the fridge and grab a slice when you want it.
If you like it softer, let a slice sit at room temp for 15 to 20 minutes before eating. If you like it firm and dense, serve it straight from the fridge.
You can make this recipe ahead by baking it the day before you need it. Once it’s fully cooled, cover it and refrigerate until serving.
If you want to keep it longer, you can freeze individual portions (wrapped well) and thaw in the fridge overnight. The texture stays pretty nice, especially if you serve it chilled.
A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
Does the pie taste like mayonnaise?
No. The mayo mostly disappears into the chocolate and just leaves you with a moist, rich filling. If you didn’t know it was in there, you’d probably just assume it was a normal fudgy chocolate pie.
Can I use hot water instead of coffee?
Yes, hot water works well and keeps the flavor more straightforward. Coffee doesn’t make it taste like coffee, but it does make the chocolate taste deeper.
How do I know when the pie is done?
The center should look set (not sloshy), and a toothpick near the center should come out with a few moist crumbs. If it comes out wet with batter, give it a few more minutes and check again.
Why does my pie need to cool for so long?
This filling sets as it cools. If you slice it too soon, the middle will still be soft and you won’t get clean pieces.
Can I chill it before serving?
Definitely. I like it chilled when I want sharper slices and a denser texture. Just add whipped cream right before serving.
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 9 inch unbaked pie crust.
Dry Mix
- 1 cup granulated sugar
- 1 2 cup unsweetened cocoa powder
- 1 4 cup all purpose flour
- 1 2 tsp baking powder
- 1 4 tsp fine salt.
Wet Mix
- 2 large eggs
- 1 cup mayonnaise
- 1 tsp vanilla extract
- 1 2 cup hot coffee or hot water.
Optional Toppings
- whipped cream
- powdered sugar
- chocolate shavings.
INSTRUCTIONS
Prep
- preheat oven to 350 F
- place pie crust in a 9 inch pie plate and crimp edges
- set pie plate on a baking sheet.
Mix Batter
- whisk sugar cocoa flour baking powder and salt until uniform
- whisk eggs mayonnaise vanilla and hot coffee until smooth
- whisk wet into dry just until combined and glossy.
Bake And Cool
- pour filling into crust and smooth the top
- bake until the center is set and a toothpick inserted near the center comes out with a few moist crumbs 30 to 40 minutes
- cool at least 2 hours before slicing for clean cuts and best texture.
