Blackberry Jam Breakfast Bars
We love making Blackberry Jam Breakfast Bars because they’re a quick, delicious way to start the day with a satisfying breakfast that’s not just another bowl of cereal.
Kitchen Note
When making Blackberry Jam Breakfast Bars for the first time, don’t overmix the crust ingredients, as this can make the bars tough. Also, let them cool completely before cutting to ensure clean cuts.

Why this Blackberry Jam Breakfast Bars works
- The combination of crunchy crust and soft blackberry jam filling
- A sweet and slightly tart flavor profile
- Prep time is under 20 minutes
- It’s a great option for a quick weekday breakfast
- Best for breakfast or as a snack
What you’ll need
The key ingredients here are the rolled oats, blackberry jam, and brown sugar, which all come together to create a delicious and satisfying bar.
- 1 1/2 cups rolled oats
- 1/2 cup brown sugar
- 1/4 cup granulated sugar
- 1/2 cup cold unsalted butter
- 2 large eggs
- 2 teaspoons vanilla extract
- 2 cups blackberries
- 1/4 cup blackberry jam
- 1 teaspoon baking powder
- 1/4 teaspoon salt
Notes from making this a bunch of times
- Pressing the crust mixture into the pan evenly is crucial for the bars to bake uniformly
- A common mistake is overbaking, which can make the bars dry
- Using high-quality blackberry jam makes a big difference in the flavor
- The bars are done when the edges are lightly golden brown
- You can make the crust ahead of time and store it in the fridge for up to a day
Swaps and substitutions
To make a gluten-free version, swap the all-purpose flour with almond flour. For a protein boost, you can add some chopped nuts or seeds to the crust. If you’re looking for a vegan version, you can replace the egg with a flax egg. For a spicy kick, you can add a pinch of cinnamon to the crust.

Storing and reheating
These bars can be stored in an airtight container in the fridge for up to 5 days. Reheat them in the microwave for 10-15 seconds or in the oven at 350°F for 5-7 minutes. You can also freeze them for up to 2 months and thaw at room temperature. To keep them fresh, store them in a single layer in the container.
Common questions
Yes, you can use other types of jam, such as strawberry or raspberry. Just keep in mind that the flavor will be slightly different.
Yes, you can make the crust ahead of time and store it in the fridge for up to a day. You can also bake the bars and store them in an airtight container for up to 5 days.
Store the bars in an airtight container in the fridge for up to 5 days. You can also freeze them for up to 2 months and thaw at room temperature.
Blackberry Jam Breakfast Bars
🧂 Ingredients
👩🍳 Instructions
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1Preheat oven to 375°F (190°C). Line 8-inch square baking dish with parchment paper.
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2In a medium bowl, whisk together oats, brown sugar, granulated sugar, baking powder, and salt.
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3Add cold butter to dry ingredients and mix until crumbly.
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4Press half of the mixture into prepared baking dish.
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5In a separate bowl, whisk together eggs and vanilla extract. Stir in blackberry jam.
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6Pour egg mixture over crust, then top with remaining oat mixture.
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7Bake for 35 minutes. While bars are baking, prepare Blackberry Glaze.
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8In a small bowl, whisk together powdered sugar and blackberry jam until smooth.
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9Remove bars from oven and let cool for 10 minutes. Drizzle with Blackberry Glaze.
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10Cut into bars and refrigerate for at least 30 minutes before serving.
We hope you enjoy making and eating these Blackberry Jam Breakfast Bars as much as we do! Let us know in the comments how they turn out for you.
