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Melt in Your Mouth Rhubarb Dessert

June 27, 2024 by Erika Leave a Comment

Rhubarb is a staple when the shoots of these first fruits of spring offer an endless of array of dessert options. But this scrumptious, mouth-watering Rhubarb Dessert is a real treat. The sweet custard filling melds together with the tart rhubarb, while the soft, light meringue melts in your mouth and the base is just enough to ground the whole lot.

piece of rhubarb dessert on plate with pottery in background

My mom and my grandma both make this rhubarb dessert several times each spring and summer. It is delicious cold, and can be prepared in advance, but it is especially wonderful if it is still warm. It just slides down your throat.

Making Rhubarb Dessert

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close up of bowl with chopped rhubarb for rhubarb dessert

First, collect rhubarb from the garden or the farmers’ market to make six cups. With a large, sharp knife, chop the rhubarb into small pieces. This can be done up to a day before and stored in the fridge to save a few minutes.

chopping rhubarb on a wooden cutting board for rhubarb dessert

A sharp knife will cut right through the rhubarb and keep it from forming those long tough strings that come from not cutting through completely. Large, sharp knives are easier, safer and more enjoyable to work with. Trying to cut too hard with a small, dull knife is no fun at all. Make yourself feel like a chef and grab the big knife.

cutting butter into rhubarb dessert base with pastry cutter.

In a mixing bowl, mix the base ingredients together – the flour, butter and sugar, in a mixer or with a pastry cutter or forks, until crumbly. The butter will melt and hold everything together in the oven. Hard margarine and lard have also been used for the rhubarb dessert base.

Press into the pan and bake.

While the base is baking, mix up the custard filling in the same mixing bowl, including the sugar, flour, cream and egg yolks. I have used whole milk in this recipe, but the baking time will be about ten minutes longer.

separating egg yolks from egg whites

Separate the yolks and the whites. Put the whites in a separate bowl and set aside, and add the yolks to the custard filling. DO NOT GET EVEN A DROP OF YOLK IN THE EGG WHITES, or the meringue will not turn out.

bowl of custard ingredients with egg yolks and bowl of egg whites

To separate egg yolks and whites, crack the egg and separate the shell halves. Slide the yolk from one half to the other until the egg white separates and falls into the bowl.

pouring milk into custard mixture in bowl

Place the rhubarb evenly over the baked crust. Give the custard mixture one more stir, and then pour it evenly over the rhubarb. Bake until the custard mixture is somewhat firm and not jiggly in the middle.

pouring custard over rhubarb in cake pan with baked base

Near the end of this baking time, beat the egg whites with a mixer. My hand blender whisk attachment made quick work of this meringue in about seven minutes. My “antique” hand-me-down electric mixer had a tough time getting the job done in twenty minutes. Start on a slow setting and slowly turn up the speed to prevent egg white from coating the kitchen.

rhubarb dessert with base, rhubarb and custard all baked

When the egg whites are white and fluffy, slowly, a little bit at a time, add the sugar until the mixture becomes glossy and forms stiff peaks. Beat in the vanilla.

egg whites getting frothy during whipping in a bowl with whisk blender
adding sugar to meringue during whipping with whisk blender in bowl
stiff peaks of meringue in bowl with whisk

Spread the meringue mixture over the baked custard. The meringue can be even, or form little peaks for prettiness. But the meringue must stick to the sides of the pan all the way around.  Bake until it is lightly browned.

The meringue should be very fluffy when it comes out of the oven. It is so impressive, but inevitably, it will fall a bit. This does not constitute a fail. It is pretty normal. This is not a hard crusty meringue like meringue cookies, but soft, spongy and fluffy.

If a 9×13 pan is too much dessert, I have made a half recipe in an 8×8 pan, and even baked it in my large, convection toaster oven.

Leftovers can be stored for a few days in the fridge.

piece of rhubarb dessert on white plate

Now, when you’re eating delicious summer BBQ, make sure to save room for rhubarb dessert! The best is yet to come!

You might also enjoy these recipes:

Homemade Iced Coffee Concentrate

Green Bean Soup

Beet Soup

piece of rhubarb dessert on white plate

Rhubarb Dessert

The sweet custard filling melds together with the tart rhubarb, while the soft, light meringue melts in your mouth and the base is just enough to ground the whole lot.
Print Recipe Pin Recipe
Total Time 1 hour hr 30 minutes mins
Servings: 15
Course: Dessert
Cuisine: American
Ingredients Method

Ingredients
  

Base
  • 1 ½ cups flour
  • ¾ cup butter
  • 2 Tbsp sugar
Filling
  • 6 cups chopped rhubarb
  • 2 cups sugar
  • 6 egg yolks
  • ¼ cup flour
  • 1 cup cream/ evaporated milk
Topping
  • 6 egg whites
  • ¾ cup sugar
  • 1 tsp vanilla

Method
 

Base
  1. Crumble all the base ingredients together with a mixer or pastry blender.
  2. Press into an ungreased 9×13 cake pan.
  3. Bake for 10 minutes at 300℉
Filling
  1. While the base is baking, in the same bowl, mix or whisk together sugar, egg yolks, flour and cream, keeping the egg whites in a separate bowl.
  2. Place rhubarb evenly on baked crust.
  3. Whisk and pour mixture evenly over the rhubarb.
  4. Bake at 350℉ for 45 minutes, or until the custard is not jiggly.
Meringue Topping
  1. In the last 10 minutes of the custard baking, beat the egg whites with a mixer or whisk attachment on a blender. When they are white and fluffy, slowly add sugar until it is glossy and forms stiff peaks.
  2. Stir in vanilla.
  3. Spread the meringue mixture over the baked custard, making sure it sticks to the sides of the pan.
  4. Bake at 275℉ until lightly browned, about 20 minutes.
  5. Cool partially or completely. Serve and enjoy!
Picture of a bowl of chopped rhubarb, close up, and picture of a piece of rhubarb dessert on a white, square plate, and text reading melt in your mouth rhubarb dessert

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Welcome! I'm Erika, I live on eighty acres in the northern prairies of southern Manitoba with my husband and four kids. Here, we enjoy the outdoors and try to be more self sufficient as we try new things in the garden and learn about our land and the world around us.

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I'm Erika, I live on eighty acres in the northern prairies of southern Manitoba with my husband and four kids. Here, we enjoy the outdoors and try to be more self sufficient as we try new things in the garden and learn about our land and the world around us.

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