Rhubarb is a unique fruit that adds a delightful tartness to many dishes. If you’re looking for a quick and easy dessert, 3-Ingredient Rhubarb Squares are a perfect choice. This recipe requires minimal ingredients and is simple to make, making it a great treat for any occasion.

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Why Make This Recipe
Making 3-Ingredient Rhubarb Squares is a fantastic idea for several reasons. First, it is incredibly easy to prepare, even for beginner bakers. Second, it uses fresh rhubarb, which is a great source of vitamins and adds a lovely flavor. Finally, this recipe is quick—perfect for when you want a sweet dessert without much fuss.
How to Make 3-Ingredient Rhubarb Squares
Ingredients:
- 1 can (14 ounces) sweetened condensed milk
- 1 and 1/4 cups self-raising flour
- 2 cups diced fresh rhubarb
Directions:
- Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius).
- Line a 9 by 9 inch baking pan with parchment paper.
- In a mixing bowl, stir together the sweetened condensed milk and self-raising flour until a thick batter forms.
- Fold in the diced rhubarb evenly throughout the batter.
- Pour the batter into the prepared pan and smooth the top.
- Bake for 25 to 30 minutes, or until the top is lightly golden and a toothpick inserted comes out clean.
- Let cool completely before slicing into squares.
How to Serve 3-Ingredient Rhubarb Squares
You can serve 3-Ingredient Rhubarb Squares plain or with a dusting of powdered sugar. For an extra treat, consider adding a dollop of whipped cream or a scoop of vanilla ice cream on the side.
How to Store 3-Ingredient Rhubarb Squares
Store any leftovers in an airtight container at room temperature for up to two days. If you want to keep them longer, refrigerate them for up to a week. You can also freeze the squares for up to three months. Just make sure to wrap them well to prevent freezer burn.
Tips to Make 3-Ingredient Rhubarb Squares
- Make sure to use fresh rhubarb for the best flavor. Frozen rhubarb can work but may change the consistency.
- For added sweetness, you can adjust the amount of sweetened condensed milk slightly.
- If you want a more intense rhubarb taste, consider adding a bit of rhubarb juice to the batter.
Variation
You can try adding other fruits like strawberries or blueberries for a different flavor twist. This will give the squares a more fruity taste and colorful appearance.
FAQs
Q1: Can I use other types of flour instead of self-raising flour?
A1: Yes, you can use all-purpose flour but you will need to add baking powder to help the squares rise.
Q2: Is rhubarb safe to eat?
A2: Yes, rhubarb is safe to eat, but avoid the leaves as they are toxic.
Q3: How do I know when my rhubarb squares are done?
A3: They are done when the top is lightly golden and a toothpick inserted in the center comes out clean.

3-Ingredient Rhubarb Squares
Ingredients
Main Ingredients
- 1 can 14 ounces sweetened condensed milk
- 1.25 cups self-raising flour
- 2 cups diced fresh rhubarb Use fresh rhubarb for the best flavor.
Instructions
Preparation
- Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius).
- Line a 9 by 9 inch baking pan with parchment paper.
- In a mixing bowl, stir together the sweetened condensed milk and self-raising flour until a thick batter forms.
- Fold in the diced rhubarb evenly throughout the batter.
- Pour the batter into the prepared pan and smooth the top.
Baking
- Bake for 25 to 30 minutes, or until the top is lightly golden and a toothpick inserted comes out clean.
- Let cool completely before slicing into squares.