There’s something magical about the first bite of strawberry rhubarb custard pie – that perfect balance of sweet berries and tangy rhubarb wrapped in creamy custard. I still remember stealing slices from my grandma’s windowsill as a kid, the flaky crust crumbling onto my shirt. After years of tweaking her recipe (and making plenty of “learning experiences”), I’ve nailed what I think is the ultimate strawberry rhubarb custard pie recipe. What makes mine special? The custard stays velvety without getting eggy, the fruit keeps just enough bite, and that glossy strawberry jam glaze? Trust me, you’ll want to lick the spoon clean.

Table of Contents
Table of Contents
Why You’ll Love This Strawberry Rhubarb Custard Pie Recipe
This isn’t just any pie – it’s the kind that makes people sneak second slices when they think no one’s looking. Here’s why it’s become my go-to summer dessert:
- Creamy dreamy custard that sets up perfectly – no runny slices sliding off your plate!
- The sweet-tangy magic of strawberries and rhubarb playing together in every bite
- That flaky crust (I use my grandma’s trick of freezing the butter first)
- The glossy jam glaze that makes it look bakery-fancy with zero effort
- It actually gets better overnight – the flavors meld beautifully in the fridge
Seriously, this pie disappears faster than I can make it. Last summer my neighbor traded me three jars of her famous peach preserves for the recipe – that’s how good it is! If you love classic baking, check out more of my favorite recipes here.
Ingredients for Strawberry Rhubarb Custard Pie Recipe
Gathering the right ingredients makes all the difference with this pie – I learned that the hard way after a disastrous “experimental” batch in college! Here’s exactly what you’ll need:
- 1 (9 inch) unbaked pie crust – homemade or store-bought, no shame either way!
- 3 cups rhubarb, sliced 1/4-inch thick (about 4 medium stalks)
- 1 cup fresh strawberries, quartered (measure after cutting)
- 3 large eggs – room temperature blends smoother
- 1 ½ cups white sugar – measured by scooping and leveling
- 3 tablespoons milk – whole milk gives richest texture
- 3 tablespoons all-purpose flour – spooned lightly into measuring spoon
- ¼ teaspoon freshly grated nutmeg – worth grating whole for best flavor
- 1 tablespoon butter, diced small – cold right from the fridge
- 2 tablespoons strawberry jam plus ¼ teaspoon water for glaze
Ingredient Notes & Substitutions
Baking is science, but I’ve found some wiggle room over the years:
- Frozen rhubarb? Thaw completely and drain well – you’ll need about 3 1/4 cups since it shrinks.
- Out of strawberries? Raspberries make a lovely twist, but reduce sugar by 2 tablespoons.
- Flour alternatives: Cornstarch works (use 1 1/2 tablespoons instead) for a clearer custard.
- No nutmeg? A dash of cinnamon works, but go light – it can overpower.
- Dairy-free? Almond milk substitutes fine, but skip the butter topping.
My golden rule? Whatever you swap, keep the rhubarb-to-strawberry ratio about 3:1 – that tang is what makes this pie special!

Equipment You’ll Need
You don’t need fancy gadgets for this pie – just a few trusty tools from your kitchen:
- 9-inch pie plate – glass or ceramic works best for even baking
- Baking sheet – trust me, you’ll want this underneath to catch drips!
- Parchment paper or silicone mat – no stuck-on messes to scrub later
- Mixing bowls – one medium for custard, one for fruit
- Whisk – gets the custard silky smooth
That’s it! Though I do keep my grandma’s old wooden spoon handy for stirring – some traditions are worth keeping. You can follow along with more of my baking adventures on Facebook!
How to Make Strawberry Rhubarb Custard Pie Recipe
Okay, here’s where the magic happens! Don’t let the steps intimidate you – it’s mostly just mixing and pouring. But a few little tricks make all the difference between a good pie and a “wow, can I have the recipe?” pie.
First things first: preheat that oven to 350°F (175°C). I can’t tell you how many times I’ve gotten everything mixed and ready only to realize my oven is still cold. Rookie mistake! While it’s heating, get your rolled-out pie crust settled into your 9-inch pie plate. Pop that plate right onto a baking sheet lined with parchment paper or a silicone mat. This is your lifesaver – it catches any bubbly-over custard and makes moving the pie so much easier.
Now, grab a bowl and toss your sliced rhubarb and quartered strawberries together. Dump that beautiful pink and red fruit right into your waiting crust and spread it out evenly. In another bowl, whisk together your eggs, sugar, milk, flour, and that freshly grated nutmeg. Whisk it until it’s totally smooth and there are no little flour lumps hiding anywhere. This is your custard base – it should be pale yellow and slightly thick.
Here’s the key part: pour that custard slowly over the fruit until it just reaches the top edge of the crust. You might not use every last drop, and that’s okay! Scatter those little diced bits of cold butter evenly over the top. Then, give the whole baking sheet a few gentle taps and a little shake on the counter. This gets rid of any sneaky air bubbles that could mess with your perfect custard texture.
Slide it into your preheated oven and bake for about 1 hour. Set a timer for 30 minutes so you remember to rotate the pie halfway through for even browning. You’ll know it’s done when the rhubarb is tender (a knife pokes through easily) and the custard is set – it should have just a slight jiggle in the very center, not a wobbly wave.
Pro Tips for Perfect Custard Pie
After a few, ahem, “learning pies,” I’ve picked up some secrets. To avoid a runny pie, make sure your flour is measured correctly – spoon it into the tablespoon and level it off. No packing! If your oven runs hot and the crust is browning too fast, tent just the crust edges with a little strip of foil. And that tap-and-shake step? Don’t skip it! Those bubbles are why some slices have holes. Trust me, a smooth top is worth the extra 10 seconds.
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Irresistible Strawberry Rhubarb Custard Pie Recipe in 60 Minutes
A sweet and tangy strawberry rhubarb custard pie with a flaky crust.
- Total Time: 1 hour 15 mins
- Yield: 1 (9-inch) pie 1x
Ingredients
- 1 (9 inch) unbaked pie crust
- 3 cups rhubarb, sliced 1/4-inch thick
- 1 cup fresh strawberries, quartered
- 3 large eggs
- 1 ½ cups white sugar
- 3 tablespoons milk
- 3 tablespoons all-purpose flour
- ¼ teaspoon freshly grated nutmeg
- 1 tablespoon butter, diced
- 2 tablespoons strawberry jam
- ¼ teaspoon water
Instructions
- Preheat the oven to 350 degrees F (175 degrees C). Place rolled-out pie crust in a 9-inch pie plate and set on a baking sheet lined with parchment paper or a silicone baking mat.
- Combine rhubarb and strawberries in a bowl; transfer to the pie crust, distributing evenly.
- Whisk eggs, sugar, milk, flour, and nutmeg together in a medium bowl. Slowly pour filling over rhubarb mixture until it just reaches the top edge of the crust. Brigitte diced butter evenly over the top of the filling. Lightly tap and shake the baking sheet to remove any air bubbles.
- Transfer pie to the preheated oven and bake, turning halfway through, until rhubarb is tender and custard is set, about 1 hour.
- Mix strawberry jam and water in a small bowl; heat in the microwave until warm, about 15 seconds. Glaze the top of the pie with the jam mixture and let cool. Refrigerate until ready to serve.
Notes
- Use fresh rhubarb for best results.
- Refrigerate leftovers promptly.
- Check pie halfway through baking for even browning.
- Prep Time: 15 mins
- Cook Time: 1 hour
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 28g
- Sodium: 120mg
- Fat: 10g
- Saturated Fat: 4g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 52g
- Fiber: 2g
- Protein: 4g
- Cholesterol: 70mg
Serving & Storing Strawberry Rhubarb Custard Pie
Patience is key here – I know it’s tempting to dive right in, but letting this pie cool properly makes all the difference! Let it sit at room temperature for at least 2 hours before slicing. That custard needs time to set up properly – cut too soon and you’ll have strawberry rhubarb soup (been there!).
For storage, pop any leftovers in the fridge covered loosely with foil. It’ll keep beautifully for 3-4 days – if it lasts that long! To serve leftovers, I like warming individual slices in the microwave for just 10-15 seconds to take the chill off. Pro tip: A dollop of fresh whipped cream or vanilla ice cream takes it over the top!

Strawberry Rhubarb Custard Pie Recipe FAQs
Over the years, I’ve fielded every possible question about this pie – usually while handing out slices at family gatherings! Here are the answers to the ones I hear most:
How do I prevent a runny pie? The flour-to-liquid ratio is everything. Measure carefully – too little flour and your custard won’t set. If you’re nervous, let the pie cool completely before slicing (I know, torture!). The custard firms up as it chills.
Can I use frozen rhubarb? Absolutely! Just thaw it first and drain really well – I press mine gently in a colander. Frozen rhubarb releases more liquid, so you might need an extra tablespoon of flour.
How long does it stay good? Covered in the fridge, it’s perfect for 3 days. After that, the crust gets soggy (though I’ve never had leftovers last that long!).
What if the crust browns too fast? My grandma’s trick: fold a strip of foil into a 2-inch band and gently crimp it around the crust edges after 30 minutes of baking. Works like a charm!

Nutritional Information
Okay, full disclosure: I’m a baker, not a nutritionist! These numbers are just estimates based on the ingredients I use. Your actual values will totally depend on your specific brands and how you measure things. But for a general idea, one slice of this beauty comes in around 320 calories, with about 10g of fat and 28g of sugar. It’s a treat, for sure – but oh, what a delicious one!
Did you give this strawberry rhubarb custard pie a whirl? I’d love to hear how it turned out! Snap a pic and share your results with me.