Apple Cinnamon Baked Oatmeal Bars

Apple Cinnamon Baked Oatmeal

The smell of cinnamon and warm apples hitting the air is the best part of this dish. It's basically a cross between a porridge bowl and a spiced cake, but it's wholesome enough to eat every morning.

This recipe relies on a few pantry staples to get that cozy feel. Since it's baked in a pan, you can slice it into bars, which makes it way easier to grab when you're rushing out the door.

You'll get a texture that's soft in the center and just a bit toasted on the edges. It's an energizing way to start the day without the sugar crash of a store-bought pastry.

Quick Recipe Specs

What Makes the Texture Work

• Rolled Oat Structure: old-fashioned oats stay intact during baking, so you get a chewy bite instead of a mushy paste.
• Applesauce Moisture: The sauce creates a velvety interior that doesn't dry out, even after reheating.
• Egg Binding: A single egg holds everything together so the bars don't crumble when you slice them.

Ingredient Deep Dive

The Full List

• 180g old-fashioned rolled oats
• 2.6g ground cinnamon
• 5g baking powder
• 1.5g salt
• 480ml milk Why this? Provides the liquid base for the oats to absorb.
• 110g maple syrup
• 1 large egg
• 5ml vanilla extract
• 125g unsweetened applesauce Why this? Keeps the bake moist without adding oil.
• 300g apples, peeled and diced small Why this? Adds fresh texture and tartness.
• 60g chopped pecans

Tools You'll Need

No specialized equipment is required. A medium bowl for the dry ingredients and a large bowl for the wet components will work perfectly. You will also need a 9x9 inch baking pan and a spatula to fold in the fruit.

Bringing It Together

Preparing the Oven and Pan

Preheat the oven to 180°C. Grease a 9x9 inch baking pan with butter or line it with parchment paper.

Mixing the Base

In a medium bowl, whisk together 180g rolled oats, 2.6g ground cinnamon, 5g baking powder, and 1.5g salt.

In a separate large bowl, beat 1 large egg. Whisk in 480ml milk, 110g maple syrup, 5ml vanilla extract, and 125g unsweetened applesauce until the mixture is smooth.

Adding the Mix-ins

Pour the dry ingredients into the wet mixture. Stir with a spatula until just combined. Gently fold in 300g diced apples and 60g chopped pecans. Make sure the fruit is spread out evenly so every bar gets some apple.

Baking to Golden Perfection

Pour the batter into the prepared baking pan and smooth the top with a spatula. Bake for 30–35 minutes until the center is set and the edges are a deep golden brown.

Remove from the oven and let the oatmeal cool for 5 minutes before slicing into 9 equal bars.

Quick Fixes

If the middle feels too soft when the timer goes off, it's usually because the apple chunks were too large and released too much water. Give it another 5 minutes in the oven. If the edges are browning too fast but the center is still liquid, move the pan to a higher rack.

Fixing a Soggy Center

Dicing apples into uniform, small pieces ensures they cook through without leaving puddles in the batter.

Preventing Burnt Edges

Avoid using a dark colored metal pan if you tend to overbake, as these absorb more heat and brown the edges faster.

Swaps and Variations

Since this is a budget-friendly base, you can easily change the mix-ins. If you have extra berries in the freezer, swap half the apples for blueberries. For a high protein apple cinnamon baked oatmeal, stir in 30g of vanilla protein powder with the dry ingredients and add an extra splash of milk to keep it from getting too dry.

If you like other apple treats, you might enjoy these Apple Cinnamon Muffins for a different texture. Or, if you want something sweeter, check out these Iced Oatmeal Cookies.

Vegan Options

To make this vegan, use almond or soy milk and a flax egg. The maple syrup is already plant-based, so you're good there.

Storing and Reheating

After the bars have cooled entirely, cover the pan or wrap individual pieces in parchment paper. They can be kept in the refrigerator for 5 days.

These bars freeze well. Wrap them individually and store them in the freezer for up to 3 months.

Warming for Freshness

To recapture that fresh-baked taste, reheat a slice in the toaster oven until the center reaches 74°C (165°F) on a thermometer. Alternatively, microwave a slice in short bursts until the center reaches 74°C (165°F) on a thermometer.

Serving Suggestions

I like to top my slice with a dollop of Greek yogurt or a drizzle of almond butter for extra protein. If you want it more like a dessert, a small spoonful of jam on top works great. Since it's a hearty dish, a simple cup of black coffee is all you really need on the side.