Rhubarb Squares: A Sweet & Tangy Nostalgia Trip

The scent of rhubarb baking always takes me back to my grandmother’s kitchen, a place perpetually filled with the comforting aroma of something delicious. I remember standing on a wobbly stool, watching her hands, gnarled with age and stained with berry juice, effortlessly transform tart stalks into the most comforting treats. It wasn’t just the taste; it was the warmth of her smile and the feeling of being enveloped in love with every bite. These Rhubarb Squares capture that same essence—a sweet and tangy reminder of simpler times and cherished family moments.

Recipe Overview

• Prep Time: 20 minutes
• Cook Time: 35 minutes
• Total Time: 55 minutes
• Yields: 1 “9 x 13” pan
• Serves: 24
• Dietary Type: Vegetarian

Ingredients

• For the Crust:

  • 2 cups all-purpose flour
  • 2 teaspoons baking powder
  • 1/2 teaspoon salt
  • 1/2 cup butter, cold and cubed
  • 2 large eggs
  • 2 tablespoons milk

• For the Rhubarb Filling:

  • 4 cups rhubarb, cut into small pieces (about 1/2 inch)
  • 1 (3 ounce) package strawberry gelatin (such as Jell-O)

• For the Topping:

  • 1/2 cup butter, melted
  • 2 cups granulated sugar
  • 1 cup all-purpose flour

Equipment Needed

• 9×13 inch baking pan
• Mixing bowls
• Pastry blender or fork
• Measuring cups and spoons

Instructions

1. Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan thoroughly. This will prevent the squares from sticking and ensure easy removal later.

2. Prepare the Crust: In a large mixing bowl, combine 2 cups of flour, 2 teaspoons of baking powder, and 1/2 teaspoon of salt. Whisk these dry ingredients together to ensure the baking powder and salt are evenly distributed throughout the flour. This helps the crust rise properly and have a balanced flavor.

3. Cut in the butter: Add the 1/2 cup of cold, cubed butter to the flour mixture. Using a pastry blender or your fingertips, cut the butter into the flour until the mixture resembles coarse crumbs. The smaller the butter pieces, the flakier your crust will be. If using your fingers, work quickly to prevent the butter from melting.

4. Bind the dough: In a separate small bowl, lightly beat the 2 eggs with a fork. Add the 2 tablespoons of milk to the eggs and stir to combine. Pour the egg mixture into the flour and butter mixture.

5. Mix to form a dough: Mix the ingredients until just combined. Be careful not to overmix the dough. Overmixing can develop the gluten in the flour, resulting in a tough crust. The dough will be slightly sticky.

6. Press into the pan: Press the dough evenly into the prepared 9×13 inch baking pan. Use your fingers or the back of a spoon to spread the dough to the edges of the pan, ensuring a uniform thickness.

7. Add the rhubarb: Spread the 4 cups of chopped rhubarb evenly over the crust. The smaller the rhubarb pieces, the easier they will cook and the more evenly distributed the tartness will be.

8. Sprinkle with gelatin: Sprinkle the dry strawberry gelatin evenly over the rhubarb. This adds sweetness, enhances the flavor of the rhubarb, and helps to thicken the filling as it bakes. Make sure you use the dry gelatin powder and do not make the gelatin according to package directions.

9. Prepare the topping: In a separate bowl, melt the 1/2 cup of butter. Add the 2 cups of sugar and 1 cup of flour. Mix until well combined and the mixture resembles coarse crumbs.

10. Sprinkle the topping: Sprinkle the topping mixture evenly over the rhubarb and gelatin. Ensure the entire surface is covered to create a beautiful and delicious topping that will crisp up in the oven.

11. Bake: Bake in the preheated oven for 30-35 minutes, or until the topping is golden brown and the rhubarb is tender. A toothpick inserted into the center should come out clean, although there may be some moisture from the rhubarb.

12. Cool and cut: Let the Rhubarb Squares cool completely in the pan before cutting them into squares. This will allow the filling to set properly and prevent the squares from falling apart.

Expert Tips & Tricks

• Chill the butter: Using very cold butter for the crust is crucial for a flaky texture. You can even freeze the butter for 10-15 minutes before cutting it into the flour.
• Rhubarb Prep: If your rhubarb is particularly juicy, you can toss it with a tablespoon of cornstarch before adding it to the crust to help absorb excess moisture.
• Topping texture: If you prefer a more crumbly topping, pulse the melted butter, sugar, and flour in a food processor for a few seconds until it resembles coarse crumbs.
• Doneness test: The squares are done when the topping is golden brown and slightly firm to the touch. If the topping is browning too quickly, you can tent the pan with foil for the last 10 minutes of baking.
• Even Baking: Rotate the pan halfway through baking to ensure even browning.
• Flavor Boost: A pinch of ground ginger or cinnamon in the topping adds a warm, comforting flavor.
• Make-Ahead Tip: You can prepare the crust and topping separately and store them in the refrigerator for up to 2 days before baking. Assemble and bake just before serving.

Serving & Storage Suggestions

These Rhubarb Squares are delicious served warm or at room temperature. They’re perfect on their own as a sweet treat or paired with a scoop of vanilla ice cream or a dollop of whipped cream for a more indulgent dessert.

• Storage: Store leftover Rhubarb Squares in an airtight container at room temperature for up to 2 days or in the refrigerator for up to 5 days.
• Freezing: For longer storage, wrap individual squares tightly in plastic wrap and freeze for up to 2 months. Thaw in the refrigerator overnight before serving.
• Reheating: To reheat, you can warm the squares in a preheated oven at 300°F (150°C) for 5-10 minutes, or microwave them for a few seconds until heated through.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	214 kcal	11%
Total Fat	8.3 g	11%
Saturated Fat	5 g	25%
Cholesterol	38.1 mg	13%
Sodium	157.3 mg	7%
Total Carbohydrate	32.9 g	12%
Dietary Fiber	0.8 g	3%
Sugars	20 g	40%
Protein	2.7 g	5%

Variations & Substitutions

• Gluten-Free: Use a gluten-free flour blend in place of the all-purpose flour for both the crust and the topping. Add a teaspoon of xanthan gum to the gluten-free flour blend to help bind the ingredients.
• Vegan: Substitute the butter with a vegan butter alternative. Replace the eggs with applesauce (1/4 cup applesauce per egg) or a flax egg (1 tablespoon flaxseed meal mixed with 3 tablespoons water per egg). Use a plant-based milk alternative like almond or soy milk.
• Berry Medley: Add other berries like strawberries, raspberries, or blueberries to the rhubarb filling for a mixed berry flavor. Reduce the amount of rhubarb accordingly to maintain the proper ratio.
• Lemon Zest: Add the zest of one lemon to the topping for a bright, citrusy flavor.
• Spice It Up: Include a pinch of cardamom or nutmeg to the topping for warmth.
• Other Gelatin Flavors: Swap the strawberry gelatin for raspberry or cherry gelatin to complement the rhubarb’s flavor.
• Nutty Topping: Add chopped nuts like almonds, pecans, or walnuts to the topping for extra crunch and flavor.

FAQs (Frequently Asked Questions)

Q: Can I use frozen rhubarb?
A: Yes, you can use frozen rhubarb. Thaw it completely and drain any excess liquid before using it in the recipe to prevent a soggy filling.

Q: Can I reduce the amount of sugar?
A: Yes, you can reduce the sugar slightly, but keep in mind that the sugar not only adds sweetness but also helps to tenderize the rhubarb and create the topping’s texture. Start by reducing the sugar in the topping by 1/4 cup.

Q: My topping isn’t browning. What can I do?
A: If the topping isn’t browning, try increasing the oven temperature slightly for the last few minutes of baking or placing the pan under the broiler for a minute or two, watching it carefully to prevent burning.

Q: Can I make this ahead of time?
A: Yes, these Rhubarb Squares can be made ahead of time. They can be stored at room temperature for a day or two or in the refrigerator for up to a week. The flavors tend to meld and improve over time.

Q: My crust is tough. What did I do wrong?
A: A tough crust is usually caused by overmixing the dough. Be sure to mix the dough just until the ingredients are combined. Overmixing develops the gluten in the flour, resulting in a tough crust.

Final Thoughts

These Rhubarb Squares are more than just a dessert; they’re a taste of nostalgia, a connection to family, and a celebration of simple, wholesome ingredients. Don’t be intimidated by the slightly tart flavor of rhubarb – the sweetness of the gelatin and the crumbly topping perfectly balance the tartness. I encourage you to give this recipe a try and experience the joy of baking and sharing a homemade treat with your loved ones. I’d love to hear how they turn out for you, so don’t hesitate to leave a comment with your feedback or any variations you’ve tried! Serve these squares with a cup of hot tea or a glass of cold milk for the ultimate comforting experience.