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Home » Recipes » Breakfast Recipes

Blackberry Baked Oatmeal with Banana and Almonds

Modified: Aug 21, 2025 by Kori Butler

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Blackberry baked oatmeal is the cozy, make-ahead breakfast that tastes like a warm berry cobbler but fuels your morning with wholesome oats. This oatmeal bake is perfect for meal prep, bakes up golden in one baking dish, and it's easy to adapt for gluten-free and dairy-free needs without sacrificing flavor.

A baking dish and a white bowl of blackberry baked oatmeal.Pin
Jump to:
  • The backstory.
  • It's a must-make.
  • Let's talk texture and flavor.
  • What you'll need.
  • Customize it your way.
  • Flexible dietary swaps.
  • How to make blackberry oatmeal bake.
  • How to enjoy it.
  • Kori's tips.
  • FAQ's
  • 📖 The recipe.
  • Keep the good eats going.
  • 💬 What readers are saying.

The backstory.

I've always had a soft spot for baked oatmeal-it's the kind of breakfast that feels special but is secretly so easy to make. This version came about one summer when I had more blackberries than I knew what to do with, thanks to an overly enthusiastic berry-picking trip. The sweet-tart berries paired perfectly with ripe banana, cozy cinnamon, and a crisp brown sugar topping. Over the years, it's become one of my favorite customizable breakfasts-you can swap in different fruits, nuts, or even make it dairy-free or egg-free so everyone at the table can enjoy a warm, hearty helping.

xoxo Kori

It's a must-make.

This baked blackberry oatmeal is a cozy, better-for-you bake that sets creamy in the center, crisp on top, and keeps you satisfied through the morning:

  • Meal prep friendly - bake once, enjoy all week in minutes with quick reheat options.
  • Better-for-you comfort - whole rolled oats, banana, and blackberries deliver fiber and nutrients for a satisfying breakfast.
  • Simple, pantry-led ingredients - this is one of those baked oatmeal recipes that uses what you already have, no special trip required.
  • Flexible for many lifestyles - easily make it dairy-free and gluten-free with simple swaps noted below.

This is my go-to make-ahead breakfast-bake it once, reheat it all week, and every serving is just as warm, cozy, and delicious as the first day.

Let's talk texture and flavor.

Think warm, custardy oats studded with jammy blackberries, a kiss of vanilla extract, and cinnamon for gentle warmth. The edges set and lightly puff while the center stays creamy, then a quick broil melts the brown sugar into a delicate, crackly top. Every spoonful balances tender oats, bright blackberry pops, and just enough sweetness.

What you'll need.

Ingredients needed for making blackberry baked oatmeal on a white wooden board.

Here's what you're going to need to make blackberry baked oatmeal:

  • Ground flaxseed + water (flax "eggs"): binds the batter like eggs while adding fiber.
  • Oat milk: hydrates the oats and creates a creamy, custardy set-richer milks make creamier oats.
  • Granulated sugar: lightly sweetens the bake; liquid sweeteners add a hint of caramel or floral notes.
  • Vanilla extract: rounds out the flavor with a warm, bakery-style aroma.
  • Old-fashioned oats: the hearty base that bakes up tender with just-right chew
  • Ground cinnamon: gentle warmth that complements the berry and banana.
  • Baking powder: helps the oats puff and set evenly. Use gluten-free if needed.
  • Salt: balances sweetness and brightens every flavor.
  • Ripe banana: adds moisture and natural sweetness for a softer, custardy center.
  • Fresh blackberries: juicy, tart-sweet bursts in every bite.
  • Brown sugar: sprinkled on top to melt and form a thin, crackly finish under the broiler.
  • Optional: chopped toasted almonds, adds a nutty crunch; omit or swap with walnuts or pecans.

If you're a baked oatmeal recipes lover be sure to try this blueberry banana baked oatmeal version!

Customize it your way.

Make this blackberry oatmeal bake your own with fun swaps and additions:

  • Swap almond milk for oat milk if you prefer a lighter dairy-free option.
  • Swap the chopped almonds for pecans or walnuts for a nuttier crunch, if using.
  • Add 1 to 2 teaspoons lemon zest for a bright lemon note that loves blackberries.
  • Stir in 1 tablespoon of chia seeds for extra fiber and a thicker set.
  • Swirl in a spoonful of peanut butter before baking for a creamy, indulgent ribbon.
  • Sprinkle toasted coconut on top after broiling for a tropical crunch.
  • Use agave or maple syrup in place of granulated sugar for a naturally sweet option.

Flexible dietary swaps.

Make blackberry baked oatmeal work for your lifestyle with quick, flexible dietary swaps that keep the cozy flavor and custardy texture you love:

  • Gluten-free - use certified gluten-free rolled oats and a gluten-free baking powder.
  • Lower sugar - reduce granulated sugar and brown sugar by half and sweeten to taste at the table with fruit or a light drizzle of maple syrup. You can also use a sugar substitute of your choice.
  • Higher protein - serve with a dollop of Greek yogurt or add a scoop of unflavored protein powder to the dry oats.

How to make blackberry oatmeal bake.

Here's how to make blackberry baked oatmeal with minimal dishes and a perfectly custardy center:

Mixing the flax eggs together in a white bowl.Pin

Flax "eggs"

In a small bowl, mix the flax with water. Let it sit until it becomes gelatinous.

Whisking all of the baked blackberry oatmeal ingredients in a large bowl.Pin

Mix

In a large bowl, whisk the milk, sugar, vanilla, and flax mixture together. Whisk in oats, cinnamon, baking powder, salt, walnuts, and mashed banana.

Placing the blackberry oatmeal bake in the oven.Pin

Bake

Pour mixture into a prepared baking dish and top with fresh blackberries. Bake until done.

Sprinkling the top of the baked blackberry oatmeal with brown sugar the broiling until the sugar gets crispy.Pin

Broil

Top the oatmeal evenly with brown sugar and broil until bubbly.

How to enjoy it.

A white bowl of blackberry baked oatmeal with a side of large plump fresh blackberries.Pin

Blackberry baked oatmeal is endlessly versatile and fits breakfast, snack time, or even dessert:

  • Serve it warm with a drizzle of milk of your choice.
  • With a dollop of Greek yogurt and extra blackberries.
  • Swirled with peanut butter and a sprinkle of toasted coconut.
  • Brightened with lemon zest and a splash more maple syrup.
  • Packed for on-the-go meals-cut into squares and refrigerate for the week.
  • As a cozy dessert: a warm square with a small scoop of vanilla ice cream or coconut whip.

Kori's tips.

  • Watch the broil closely - that crackly top goes from golden to too-dark fast; stay nearby.
  • Let it rest - a 10-minute rest helps the oats set for clean slices and the best texture.
  • Don't overbake - pull it when the middle has a slight jiggle; it continues to set with carryover heat.
  • Meal prep move - cool completely, portion into containers, and refrigerate for grab-and-go breakfasts all week.

FAQ's

What is the best way to store it?

Cool completely, cover, and refrigerate in the baking dish or in airtight containers for up to 4 days.

Can I freeze it?

Yes-wrap individual servings or the whole dish tightly and freeze for up to 3 months; thaw overnight in the fridge for best texture.

What is the best way to reheat it?

The microwave. Heat individual portions for 60 to 90 seconds until warm. Add a little milk of choice for extra moisture.

📌 Be sure to save this pin to Pinterest for later!

Pinterest pin with the words banana almond blackberry baked oatmeal on it.Pin

Can I ask you a favor?

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📖 The recipe.

A white bowl of baked blackberry oatmeal topped with non dairy cream and brown sugar sprinkles.

Baked Blackberry Oatmeal

This Blackberry Baked Oatmeal is a cozy, wholesome breakfast filled with juicy berries and natural sweetness from ripe banana. Made with oat milk, flax "eggs," and crunchy almonds, it's easy to customize with your favorite fruits and nuts. Enjoy it warm with a splash of milk of choice and a touch of brown sugar or maple syrup. Traditional eggs can be used in place of the flax egg if preferred.
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Author Kori Butler
Prep Time 10 minutes mins
Cook Time 55 minutes mins
Total Time 1 hour hr 5 minutes mins
Course Breakfast
Cuisine American
Servings 9
Calories 234 kcal

Ingredients
  

  • 2 tablespoons ground flax seed mixed with 6 tablespoons of water (or use 2 eggs in place of the ground flax seed and water)
  • 3½ cups oat milk or other milk of choice (dairy or non-dairy)
  • ¼ cup granulated sugar (or 1½ to 2 tablespoons of maple syrup or agave nectar)
  • 2 teaspoons vanilla extract
  • 2¼ cups old fashioned oats
  • 1 teaspoon ground cinnamon
  • 1 teaspoon baking powder (use gluten-free if needed)
  • ⅓ cup chopped toasted almonds (may be omitted; walnuts or pecans may be substituted)
  • ¼ teaspoon table salt
  • 1 large ripe banana (mashed)
  • 1 cup fresh blackberries
  • ¼ cup firmly packed brown sugar

Instructions
 

  • Preheat oven to 350º F. Grease an 8-inch square baking dish with nonstick spray.
  • In a small bowl, mix the flax meal and water. Let sit until it becomes gelatinous about 10 minutes.
  • In a large bowl, whisk together milk of choice, sugar, vanilla, flax meal mixture, oats, cinnamon, baking powder, salt, almonds, and mashed banana.
  • Pour into the baking dish and top with the blackberries. Bake for 40 to 55 minutes or until the center jiggles only slightly. (Note that the outside will start to puff first, and then the inside will follow. At the point the inside is equally puffy, the center should then be just slightly jiggly, and that's when it's done.)
  • Set oven to broil. Remove from the oven and sprinkle the brown sugar evenly over the top of the oatmeal, spreading with a spoon to cover the surface.
  • Broil the oatmeal 4 inches from the heat until sugar bubbles and browns slightly, 1 to 2 minutes. (Watch carefully to prevent burning.)
  • Remove the oats from the oven and let sit for about 10 minutes before serving. The oats will firm up as they sit. Serve warm with a drizzle of milk of choice, sweeten to taste with additional brown sugar or maple syrup sprinkled over the top.

Video

Kori's Tips

For more helpful hints, substitution ideas, cooking tips, and other delicious recipes check out my post above.
TIPS: Use gluten-free oats if needed. Oats are naturally gluten-free, but the processing may add gluten, so the package needs to state gluten-free.
SUBSTITUTIONS:
  • This is an egg-free recipe using flax "eggs", but 2 eggs or ½ cup liquid egg whites can be substituted for the flax egg (2 tablespoons of ground flax seed meal and 6 tablespoons of water, mentioned in the ingredients above).
  • Dairy or plant-based milk may be used. The creamier it is, the thicker the oats will be. I used creamy oat milk.
  • Maple syrup or agave may be substituted for the granulated sugar. 
  • A mixture of fresh berries may be used. I have not tested frozen berries, they could technically be used but they will add to the moisture and increase baking time.
  • Any favorite nut can be substituted, but I like walnuts, pecans, or almonds. You could also omit the nuts altogether. 
SERVING SUGGESTIONS: Serve warm with a drizzle of milk of choice. Sweeten to taste with brown sugar or even maple syrup. Store leftovers in the fridge, heat individual servings in a microwave until warmed through. Re-moisten by pouring a little milk over the top. 

Nutrition

Calories: 234kcalCarbohydrates: 42gProtein: 5gFat: 6gSaturated Fat: 1gPolyunsaturated Fat: 3gMonounsaturated Fat: 1gSodium: 160mgPotassium: 229mgFiber: 4gSugar: 23gVitamin A: 211IUVitamin C: 3mgCalcium: 189mgIron: 2mg
DID YOU MAKE THIS RECIPE?Mention @seekinggoodeatsofficial or tag #seekinggoodeats! Be sure to subscribe to my newsletter to receive more healthy delicious recipes straight to your inbox.

© 2025 Seeking Good Eats™

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Image of Kori Butler Seeking Good Eats Founder

Hey there, I'm Kori.

I’m a culinary school trained chef specializing in holistic nutrition and wellness. I’ve always been a major foodie, and as I’ve aged, the full impact of my love of food—and not-necessarily-healthy eating habits—caught up to me. In an effort to make positive changes in my life (and hopefully yours, too), I created this website where I could share great-tasting, craveable, healthy recipes.

More about me

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