Baked Oat Apple Squares

If you are looking for a wholesome, hearty breakfast that tastes like a warm hug in a bowl, these Baked Oat Apple Squares are the perfect solution. This recipe combines the rustic texture of old-fashioned oats with the natural sweetness of crisp apples and warm cinnamon, making it an ideal choice for busy weekday mornings or a cozy weekend brunch.

These squares are incredibly moist and flavorful, offering a nutritious, plant-based start to your day that the whole family will love.

Recipe Details

  • Flavor Profile: Warm and comforting with prominent notes of cinnamon, sweet maple, and bright apple.
  • Textures: Hearty and soft with a slight chew from the rolled oats and juicy bursts of diced apple and raisins.
  • Time: 10 minutes of prep and 40 minutes of baking time.
  • Difficulty: Easy. This is a simple one-bowl mixing process that yields professional-looking results every time.

What You’ll Need

To create these squares, you will need a base of old-fashioned rolled oats and non-dairy milk. The natural sweetness and moisture come from unsweetened applesauce and pure maple syrup, while ground flaxseed acts as a healthy binder. Fresh diced apples, raisins, and a touch of cinnamon provide the signature autumn-inspired flavor profile.

Ingredient Notes

  • Rolled Old-Fashioned Oats – These provide the best texture for baking; avoid using instant or quick oats, as they can become too mushy.
  • Ground Flaxseed – This serves as a vital binder in this egg-free recipe while adding a boost of fiber and omega-3 fatty acids.
  • Unsweetened Applesauce – This keeps the squares incredibly moist without the need for excessive oils.
  • Non-Dairy Milk – Unsweetened vanilla almond milk is a great choice here as it adds a subtle aromatic sweetness to the oats.
  • Maple Syrup – Provides a rich, natural sweetness that pairs perfectly with the cinnamon and apple.

Add-ins and Substitutions

  • Nutty Crunch – You can add 1/4 cup of chopped walnuts or pecans to the batter for an extra layer of texture.
  • Spice Variations – A pinch of nutmeg or ground ginger can be added along with the cinnamon for a deeper spice profile.
  • Seed Boost – Stir in a tablespoon of chia seeds or hemp hearts for additional nutrients without changing the baking method.
A collage showing a close up of a single baked oat apple square with visible apple chunks and honey glaze, paired with a full plate of squares stacked casually on parchment.
Baked Oat Apple Squares

How to Make Baked Oat Apple Squares

This recipe is designed for efficiency, focusing on a straightforward mixing method that ensures the oats are perfectly hydrated before they hit the oven.

  • Prepare the Base: Start by preheating your oven to 375°F and spraying your 8×13 baking dish with non-stick spray.
  • Mix the Ingredients: In a large bowl, combine the rolled oats, cinnamon, baking powder, sea salt, almond milk, applesauce, maple syrup, flaxseed, coconut oil, and vanilla. Whisk or stir until everything is well incorporated.
  • Fold in the Fruit: Gently fold in the raisins and 3/4 cup of your diced apples, ensuring the fruit is evenly distributed throughout the oat mixture.
  • Assemble and Bake: Pour the mixture into your prepared baking dish and spread it out evenly. Scatter the remaining 1/4 cup of diced apples over the top for a beautiful finish.
  • Set the Center: Bake for about 40 minutes. You will know they are done when the center has set and a toothpick inserted comes out clean.
See also  Chocolate Peanut Butter Banana Muffins

Pro Tip: Let the baked oatmeal cool for at least 10 to 15 minutes before slicing. This resting period allows the oats to fully set, ensuring you get clean, sturdy squares that don’t crumble when served.

Recipe Tips

  • Small Dicing – Cut your apples into small, uniform pieces (about 1/4 inch) to ensure they soften properly during the 40-minute bake time.
  • Proper Measurement – When measuring your oats, use the scoop-and-level method to ensure you don’t add too much dry volume to the liquid ratio.
  • Check for Doneness – Every oven is different; if the top is browning too quickly before the center is set, you can lightly tent the dish with foil for the last 10 minutes.
  • Grease the Dish – Be thorough when spraying your baking dish, especially the corners, to make removal and cleanup much easier.

FAQs

Can I use frozen apples for this recipe? While fresh apples provide the best texture, you can use frozen diced apples. Just be sure to thaw and pat them dry first so they don’t add too much extra moisture to the batter.

Are these squares gluten-free? Oats are naturally gluten-free, but they are often processed in facilities with wheat. If you have a sensitivity, ensure you are using certified gluten-free rolled oats.

How do I prevent the squares from being too soft? Ensure you bake them long enough for the center to set. The toothpick test is the best way to verify that the moisture has been properly absorbed by the oats.

Serving Suggestions

  • Nut Butter Drizzle – Top your warm square with a generous drizzle of almond butter or peanut butter for extra protein.
  • Extra Sweetness – A light drizzle of maple syrup or a splash of cold almond milk over the top adds a lovely finishing touch.
  • Fresh Fruit – Serve alongside a handful of fresh berries or a few extra slices of apple for a bright, fresh contrast.

Make This Recipe in Advance

These squares are a meal-prepper’s dream. You can bake the entire batch and store it in the refrigerator in an airtight container for up to 4 days.

To reheat the whole dish, cover it with foil and place it in a 350°F oven for about 20 minutes. For individual portions, you can use a toaster oven at 350°F for 5 to 10 minutes or simply reheat in the microwave for 1 minute for a quick and easy breakfast on the go.

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
A pile of golden baked oat apple squares with a crunchy cinnamon oat crumble top, soft apple chunks inside, and a drizzle of honey pooling over the edges on parchment paper.

Baked Oat Apple Squares


  • Author: Samantha Brooks
  • Total Time: 50 minutes
  • Yield: 12 squares 1x

Ingredients

Scale
  • 2 cups rolled old-fashioned oats
  • 1 teaspoon cinnamon
  • 1 teaspoon baking powder
  • 1/2 teaspoon sea salt
  • 2 cups non-dairy milk (unsweetened vanilla almond milk recommended)
  • 1/2 cup unsweetened applesauce
  • 1/4 cup maple syrup
  • 1 Tablespoon ground flaxseed
  • 1 Tablespoon coconut oil
  • 1 teaspoon vanilla
  • 1 cup diced apple (divided)
  • 1/2 cup raisins

Instructions

Step 1: Prepare the Base
Preheat your oven to 375°F. Spray an 8×13 inch baking dish thoroughly with non-stick spray, ensuring you cover the corners for easy removal.

Step 2: Mix the Ingredients
In a large mixing bowl, combine the rolled oats, cinnamon, baking powder, sea salt, non-dairy milk, applesauce, maple syrup, ground flaxseed, coconut oil, and vanilla. Stir or whisk the mixture until all ingredients are well incorporated and the oats are evenly hydrated.

Step 3: Fold in the Fruit
Gently fold 3/4 cup of the diced apples and all of the raisins into the batter. Ensure the fruit is distributed evenly throughout the mixture so every square gets a juicy burst of apple.

Step 4: Assemble and Top
Pour the oat mixture into your prepared baking dish and spread it out into an even layer. Scatter the remaining 1/4 cup of diced apples over the top for a beautiful, rustic finish.

Step 5: Bake to Set
Place the dish in the oven and bake for approximately 40 minutes. The squares are done when the center is firm to the touch and a toothpick inserted into the middle comes out clean.

Step 6: Rest and Slice
Let the baked oatmeal cool in the pan for at least 10 to 15 minutes before slicing into squares. This resting period is essential for the oats to set, allowing for clean cuts that won’t crumble.

Notes

Storage Instructions: Store baked squares in an airtight container in the refrigerator for up to 4 days. These are excellent for meal prep; simply reheat individual portions in the microwave for 1 minute or in a toaster oven at 350°F for 5 to 10 minutes.

Apple Choice: Use firm, tart apples like Honeycrisp or Granny Smith. Dicing them into small 1/4-inch pieces ensures they soften perfectly during the bake time without becoming mushy.

Nutty Variation: For added protein and a satisfying crunch, fold in 1/4 cup of chopped walnuts or pecans to the batter before baking.

  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 square
  • Calories: 145
  • Sugar: 10g
  • Sodium: 160mg
  • Fat: 3g
  • Saturated Fat: 1g
  • Unsaturated Fat: 2g
  • Trans Fat: 0g
  • Carbohydrates: 26g
  • Fiber: 4g
  • Protein: 4g
  • Cholesterol: 0mg

Keywords: baked oat apple squares, healthy baked oatmeal, vegan apple oatmeal breakfast, meal prep breakfast oats, cinnamon apple oat bars, plant based breakfast

You Might Also Like

Leave a Comment

Recipe rating