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Home » Breakfast

Blueberry Baked Oatmeal (No Added Sugar, Gluten-Free)

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My mother in law recently came across a recipe online for blueberry baked oatmeal, problem was it was an AI generated recipe and after giving it a whirl, it was a total flop. I loved the general idea of it, though, and knew I could make one that would be blog worthy. Here it is, and blood sugar friendly to boot!

closeup of a pan of baked oats topped with blueberries and toasted almonds

Applesauce, chia seeds for structure, zero sugar maple syrup for sweetness, wild blueberries and sliced almonds. I tested it until it tasted like a cross between warm oatmeal and a blueberry muffin.

Things to Know Before You Bake

Use rolled oats, not quick oats or steel cut. Rolled oats give you that perfect texture. Chewy, sturdy enough to slice, but still soft in the middle. Quick oats turn to mush. Steel cut won't absorb enough liquid.

Don't thaw your blueberries. Toss them in frozen. They hold their shape better in the oven and you won't end up with purple oatmeal. Wild blueberries are smaller and burst with more flavor, but regular frozen blueberries work too.

The chia seeds aren't just for show. They absorb moisture, add fiber, and help the whole thing hold together. If you skip them, the texture will be a little looser.

You can prep this the night before. Assemble everything in the pan, cover it, and refrigerate overnight. Bake it straight from the fridge the next morning. You may need an extra 5 minutes of oven time.

ingredients to make baked oatmeal

Steps to Make Blueberry Baked Oatmeal

stirring together wet and dry ingredients
  1. Mix your dry ingredients. Combine rolled oats, chia seeds, baking powder, cinnamon, nutmeg, and salt in a large bowl.
  2. Whisk your wet ingredients separately. Applesauce, zero sugar maple syrup, eggs, milk, melted butter, and almond extract.
  3. Pour the wet into the dry and stir until just combined.
smoothing baked oatmeal into the pan before baking
  1. Fold in the frozen wild blueberries.
  2. Transfer to your baking dish.
baked oatmeal fresh out of the oven topped with sliced almonds
  1. Scatter sliced almonds across the top.
  2. Bake for 35 minutes until the top is golden and crisp and the center is set but still soft. Let it cool for 5 to 10 minutes before slicing.
baked oatmeal topped with blueberries in a baking pan
  1. The finishing touch. Scatter a handful of fresh wild blueberries on top right when it comes out of the oven. They'll soften from the heat and release just enough juice to soak into the surface.

Tips, Swaps & Make It Your Way

Try it with apples. Swap the blueberries for diced apple and it becomes a completely different (equally delicious) bake.

Go dairy-free. Use oat milk or almond milk in place of whole milk and swap the butter for coconut oil.

Adjust the sweetness. 60g of zero sugar maple syrup was the sweet spot for us. If you like things a little sweeter, go up to 80g. If you're using regular maple syrup, keep in mind that will change the glycemic load.

Make it your own berry. Raspberries, blackberries, or a mixed berry blend all work. Just keep them frozen and don't thaw before folding in.

Top it with yogurt. A dollop of Greek yogurt adds creaminess and extra protein. This is how I eat it most mornings.

Joanie's Balanced Bites for Steady Energy

This is a naturally balanced recipe. The oats bring fiber. The eggs and milk add protein. Butter and almonds contribute healthy fat. That combination of fiber, protein, and fat is exactly what helps your body process the carbohydrates more slowly, which means steadier energy and fewer crashes through the morning.

How to Enjoy It

I'm a big fan of healthy carbs and find that adding Greek yogurt on top adds creaminess and bumps the protein even higher for even more stable glucose. A side of scrambled eggs or turkey sausage turns it into a bigger spread if you're feeding a crowd or having a hungrier morning.

a serving of blueberry baked oatmeal on a plate
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baked oatmeal in a pan with a serving taken out

Blueberry Baked Oatmeal (No Added Sugar, Gluten-Free)

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  • Author: Joanie Simon
  • Prep Time: 10 minutes
  • Cook Time: 35 minutes
  • Total Time: 45 minutes
  • Yield: 9 servings
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American
  • Diet: Gluten-Free, Vegetarian
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Description

A cross between warm oatmeal and a blueberry muffin. Made with applesauce, chia seeds, and zero sugar maple syrup. Prep it the night before or bake it fresh. One pan, breakfast all week.


Ingredients

  • 2 ¾ cups (248g) gluten-free rolled oats
  • 2 tablespoons chia seeds
  • 1 ½ teaspoons baking powder
  • 2 teaspoons ground cinnamon
  • ¼ teaspoon nutmeg
  • ¼ teaspoon fine salt
  • ½ cup (110g) unsweetened applesauce
  • ¼ cup (60g) zero sugar maple syrup (or pure maple syrup)
  • 2 large eggs
  • 1 ¾ cups whole milk
  • ¼ cup (57g) melted butter
  • ½ teaspoon almond extract
  • 1 ½ cups frozen wild blueberries (do not thaw)
  • ¼ cup sliced almonds for topping
  • additional ¼ cup fresh wild blueberries for topping


Instructions

  1. Preheat oven to 375°F. Grease an 8x8 inch baking dish.
  2. In a large bowl, combine oats, chia seeds, baking powder, cinnamon, nutmeg, and salt.
  3. In a separate bowl, whisk together applesauce, maple syrup, eggs, milk, melted butter, and almond extract.
  4. Pour wet ingredients into dry and stir until just combined. Fold in frozen wild blueberries.
  5. Pour into prepared baking dish. Scatter sliced almonds evenly across the top.
  6. Bake for 35 minutes until the top is golden and crisp and the center is set but still soft.
  7. Let cool 5 to 10 minutes. Scatter fresh wild blueberries on top so they soften from the residual heat and release their juices. Slice into 9 squares.

Nutrition

  • Serving Size: 1
  • Calories: 188
  • Sugar: 13.1 g
  • Sodium: 136.7 mg
  • Fat: 9.2 g
  • Carbohydrates: 20.7 g
  • Fiber: 3.2 g
  • Protein: 7 g
  • Cholesterol: 57.3 mg

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About Joanie Simon

Joanie Simon is a lifelong food lover, health coach, and recipe developer who believes managing blood sugar and eating delicious food go hand in hand. Through The Glucose Gourmet, she shares gourmet comfort food recipes tested with her own CGM alongside strategies for sustainable wellness.

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photo of Joanie Simon, author of The Glucose Gourmet

Hi, I'm Joanie

I teach food lovers how to get off the glucose rollercoaster and stabilize their energy without giving up the foods that bring them joy.

From viral cottage cheese pizza to sourdough bread, I use data-backed hacks to turn family favorites into metabolic wins.

More about me

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