This gluten-free blueberry baked oatmeal combines the best of oatmeal and cake. It bakes up golden on top with a tender, chewy interior that holds together in neat slices — much more satisfying than a bowl of soggy oats. It reheats beautifully, so you can bake once and enjoy slices throughout the week.
Fresh blueberries burst as the bake cooks, adding pockets of juicy sweetness. Prepare it ahead for easy breakfasts, brunches, or a light dessert.
Why You’ll Love this Recipe
- Vegan and gluten-free option. Almond milk and applesauce make this dairy- and egg-free without needing flax eggs or special replacers.
- Feeds a crowd. Great for brunches or holidays — set out toppings so guests can customize their slices.
- Adaptable. Swap blueberries for raspberries, blackberries, or chocolate chips to suit your taste.
Ingredients
Ingredient Notes
- Brown sugar – If you follow a vegan diet, check that the brown sugar you buy is processed without bone char. Coconut sugar is a suitable alternative.
- Oats – Not all oats are truly gluten-free due to cross-contact in fields or processing. Purity protocol oats are grown in dedicated fields with strict controls; certified gluten-free oats are tested but may still have trace contamination. Instant oats won’t give the right texture here.
- Applesauce – Unsweetened applesauce replaces eggs in this recipe. It keeps the bake moist without adding extra sweetness.
- Almond milk – Unsweetened almond milk works well, but any non-dairy or dairy milk may be substituted.
- Fresh blueberries – Use about 1 cup. Too many berries can release excess juice and make the bake soggy; raspberries or blackberries are fine alternatives.
What are Purity Protocol Oats?
Purity protocol oats are the strictest option for those needing gluten-free oats. They are grown in fields that have not been used for gluten-containing grains for a defined period and follow rigorous controls to avoid cross-contact. If you have celiac disease, purity protocol oats provide an added level of reassurance compared with standard certified oats.
Step-by-Step instructions
This blueberry baked oatmeal is straightforward to make and easy to customize. Change spices or mix-ins to suit your pantry. The photos below show the main steps and will help you get consistent results every time.
Recipe FAQs
Yes. Any milk works in this recipe — use what you have on hand.
Yes. Assemble the bake, cover it, and refrigerate overnight. Add about 5–10 extra minutes to the bake time if you bake it straight from the fridge.
No. Oats can be cross-contaminated with gluten during growing or processing. Buy certified gluten-free or purity protocol oats if you need to avoid gluten.
Using too many juicy berries can cause sogginess. Stick to about 1 cup of blueberries so the bake holds its structure.
Expert Tips
- Grease the pan well. Use cooking spray or rub butter/oil on the dish to prevent sticking.
- Let it rest. Allow the bake to cool for about 5 minutes before slicing so the pieces hold together.
- Add toppings after baking. Nuts and seeds can burn during baking; sprinkle them on when serving.
Storage instructions
- Storing: Refrigerate leftovers in an airtight container for 4–5 days.
- Freezing: Flash-freeze individual slices on a sheet pan, then wrap and store in a freezer bag for up to 3 months.
- Reheating: Microwave slices for about 1 minute, or warm in a 350°F (175°C) oven for 10–15 minutes.
Serving suggestions
Serve warm with a drizzle of maple syrup or honey and a dollop of Greek yogurt or dairy-free yogurt. Add chopped pecans, a smear of almond butter, or extra fresh berries on top.
For a larger brunch spread, pair this baked oatmeal with savory items like a gluten-free quiche or an egg breakfast casserole, or complement it with muffins for more blueberry flavor.
More gluten-free breakfasts to try
-
Gluten-Free Bagels
-
Gluten-Free Peach Crumble Focaccia
-
Gluten-Free Boston Cream Donuts
Did you make this recipe?
I’d love to hear how it turned out. Please rate the recipe and leave a comment below. Feel free to share photos on social media and tag the original creator if you like.
Gluten Free Blueberry Baked Oatmeal
Ingredients
- 2 cups (180 g) oats — use purity protocol or certified gluten-free oats
- 1 teaspoon baking powder
- 1 teaspoon cinnamon
- 1/2 teaspoon salt
- 1 1/2 cups (375 g) unsweetened almond milk (or milk of choice)
- 1/3 cup (90 g) unsweetened applesauce
- 1/4 cup (54.5 g) vegetable oil
- 1/3 cup (73 g) brown sugar
- 1 teaspoon vanilla extract
- 1 cup (148 g) blueberries
Instructions
- Preheat the oven to 350°F (180°C). Grease an 8×8-inch baking dish.
- In a large bowl, stir together the oats, baking powder, cinnamon, and salt.
- In a separate bowl, whisk the almond milk, applesauce, vegetable oil, brown sugar, and vanilla extract until smooth.
- Pour the wet ingredients into the dry ingredients and stir until combined.
- Fold in the blueberries gently so they remain intact.
- Transfer the mixture to the prepared baking dish and spread evenly.
- Bake at 350°F for 40–50 minutes, until the milk is absorbed and the top is lightly golden.
- Allow the bake to rest for a few minutes, then slice and serve warm. Drizzle with maple syrup if desired.
Notes
- Gluten-Free Note: Use purity protocol or certified gluten-free oats. Instant oats won’t produce the same texture.
- Milk: Any milk works here — use cow’s milk if you are not avoiding dairy.
- Vegan Note: If you need this to be vegan, verify that your brown sugar is processed without bone char. Coconut sugar is a good substitute.
- Mix-ins: Add about 1/2 cup of chopped nuts or dried fruit if you like.
Nutrition
Carbohydrates: 24 g |
Protein: 3 g |
Fat: 8 g |
Sugar: 11 g
