Why Make This Recipe
Amish Oatmeal Rhubarb Bars are not just a tasty dessert; they bring a lovely tartness from the rhubarb and a comforting sweetness from the oat crust. These bars are easy to make and are perfect for sharing with family and friends. They make a great snack for any occasion and are a fun way to enjoy rhubarb when it’s in season.
How to Make Amish Oatmeal Rhubarb Bars
Ingredients:
- 1 cup all-purpose flour
- 1 cup rolled oats
- 1 cup brown sugar
- 1/2 cup unsalted butter, melted
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 2 cups fresh rhubarb, chopped
- 1/2 cup granulated sugar
- 1 tablespoon cornstarch
- 1 teaspoon vanilla extract
Directions:
- Preheat the oven to 350°F (175°C). Grease a 9×9 inch baking dish.
- In a bowl, combine the flour, rolled oats, brown sugar, melted butter, baking soda, and salt until crumbly.
- Take half of this mixture and press it firmly into the bottom of the greased baking dish to form a crust.
- In another bowl, mix the chopped rhubarb, granulated sugar, cornstarch, and vanilla extract until the rhubarb is well coated.
- Spread the rhubarb mixture over the crust in the baking dish.
- Crumble the remaining oat mixture on top of the rhubarb.
- Bake for 30-35 minutes, or until golden brown.
- Let cool before slicing into bars and serving.
How to Serve Amish Oatmeal Rhubarb Bars
These bars are delicious served warm or at room temperature. You can enjoy them plain, or with a scoop of vanilla ice cream on top for an extra treat. They also pair nicely with a cup of coffee or tea for a delightful afternoon snack.
How to Store Amish Oatmeal Rhubarb Bars
Store any leftover bars in an airtight container at room temperature for up to 3 days. If you want to keep them longer, you can refrigerate them for about a week. For the best flavor, let them sit at room temperature for a bit before serving.
Tips to Make Amish Oatmeal Rhubarb Bars
- Make sure to chop the rhubarb into small pieces for even distribution.
- If you like it sweeter, you can increase the granulated sugar a little.
- You can substitute part of the rhubarb with strawberries for a sweeter twist.
Variation
You can try adding nuts like walnuts or pecans to the oat mixture for added crunch. Additionally, cinnamon or nutmeg can be sprinkled in for more flavor.
FAQs
Can I use frozen rhubarb instead of fresh?
Yes, you can! Just make sure to thaw and drain any excess water before mixing it with sugar and cornstarch.
Can I make these bars gluten-free?
You can substitute the all-purpose flour with a gluten-free mix and use certified gluten-free oats to make this recipe gluten-free.
How do I know when the bars are done baking?
The bars are done baking when the top is golden brown and the rhubarb filling is bubbly. You can insert a toothpick into the oat layer; if it comes out clean, they are ready.

Amish Oatmeal Rhubarb Bars
Ingredients
Method
- Preheat the oven to 350°F (175°C). Grease a 9x9 inch baking dish.
- In a bowl, combine the flour, rolled oats, brown sugar, melted butter, baking soda, and salt until crumbly.
- Take half of this mixture and press it firmly into the bottom of the greased baking dish to form a crust.
- In another bowl, mix the chopped rhubarb, granulated sugar, cornstarch, and vanilla extract until the rhubarb is well coated.
- Spread the rhubarb mixture over the crust in the baking dish.
- Crumble the remaining oat mixture on top of the rhubarb.
- Bake for 30-35 minutes, or until golden brown.
- Let cool before slicing into bars and serving.