Irresistible Brown Sugar Cinnamon Crumble Bake in 35 Minutes

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Author: Emily Frost
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Nothing says “lazy weekend morning” like the smell of warm cinnamon and brown sugar wafting through the house. My Brown Sugar Cinnamon Crumble Bake has become our family’s go-to breakfast – the one dish that makes sleepy kids actually jump out of bed. It’s the kind of recipe that feels like a hug, with toasty oats, cozy spices, and that irresistible caramel-like flavor from dark brown sugar. Best part? You probably have everything you need in your pantry right now. Just toss, bake, and enjoy those blissful moments before the chaos of the day begins.

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Table of Contents

Why You’ll Love This Brown Sugar Cinnamon Crumble Bake

Trust me, once you try this cozy breakfast bake, you’ll understand why it’s become my family’s weekend staple. Here’s what makes it so special:

  • Effortless mornings: Just whisk, pour, and bake – no fussing with complicated steps while you’re still half-asleep
  • That perfect texture: The oats stay wonderfully chewy while the edges get slightly crisp (my favorite part!)
  • Comfort in every bite: Warm cinnamon and rich brown sugar create that nostalgic flavor we all crave
  • Kid-approved magic: Even my picky eater asks for seconds when this comes out of the oven

Ingredients for Brown Sugar Cinnamon Crumble Bake

Gather these simple ingredients – I bet you have most already! The magic happens when these pantry staples come together:

  • 2 cups old-fashioned rolled oats (not quick oats – trust me on this)
  • 1/2 cup packed dark brown sugar (pack it tight for that caramel depth)
  • 1 cup milk (whole milk makes it extra rich, but any works)
  • 2 large eggs, lightly beaten (room temp blends better)
  • 1/4 cup melted butter (salted or unsalted both work)
  • 1 teaspoon cinnamon (the good stuff – smell it first!)
  • 1 teaspoon baking powder (check it’s not expired)

How to Make Brown Sugar Cinnamon Crumble Bake

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This cozy breakfast bake comes together in minutes – just follow these simple steps for perfect results every time. Don’t worry, I’ve included all my little tricks along the way!

Step 1: Prep and Preheat

First things first – grab your favorite 8×8 baking dish and grease it really well with butter or cooking spray. Those crispy edges are delicious, but nobody wants their breakfast stuck to the pan! Preheat your oven to 350°F (175°C) while you mix everything up.

Step 2: Mix Wet Ingredients

In a big bowl, whisk together the eggs, brown sugar, milk, and melted butter until smooth and creamy. Take your time here – you want that brown sugar completely dissolved. The mixture should look like caramel-colored silk when it’s ready.

Step 3: Combine Dry Ingredients

Now gently fold in the oats, cinnamon, and baking powder. I use a rubber spatula and make big, slow circles – just until everything’s moistened. A few lumps are fine! Overmixing makes the oats mushy, and we want that perfect chewy texture.

Step 4: Bake and Serve

Pour your mixture into the prepared dish and pop it in the oven for 35-40 minutes. You’ll know it’s done when the edges pull away slightly and the top turns golden brown. Let it cool for about 5 minutes (the hardest part!) before slicing into squares. Serve warm – maybe with an extra sprinkle of cinnamon if you’re feeling fancy.

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Brown Sugar Cinnamon Crumble Bake

Irresistible Brown Sugar Cinnamon Crumble Bake in 35 Minutes

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A comforting breakfast bake with the warm flavors of brown sugar and cinnamon, perfect for lazy weekends.

  • Total Time: 50 minutes
  • Yield: 9 servings 1x

Ingredients

Scale
  • 2 cups rolled oats
  • 2 large eggs
  • 1/2 cup brown sugar
  • 1 cup milk
  • 1/4 cup melted butter
  • 1 teaspoon cinnamon
  • 1 teaspoon baking powder

Instructions

  1. Preheat your oven to 350°F (175°C) and grease a square baking dish.
  2. In a large bowl, whisk together the eggs, brown sugar, milk, and melted butter until smooth.
  3. Stir in the rolled oats, cinnamon, and baking powder until evenly mixed.
  4. Pour the oat mixture into the prepared baking dish and level it gently.
  5. Bake for 35 to 40 minutes, or until set and lightly golden on top.
  6. Allow it to cool slightly before slicing.
  7. Cut into squares and serve warm.

Notes

  • Best served warm for maximum flavor.
  • Store leftovers in an airtight container for up to 3 days.
  • Author: Emily Frost
  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Nutrition

  • Serving Size: 1 square
  • Calories: 220
  • Sugar: 12g
  • Sodium: 120mg
  • Fat: 8g
  • Saturated Fat: 4g
  • Unsaturated Fat: 3g
  • Trans Fat: 0g
  • Carbohydrates: 30g
  • Fiber: 3g
  • Protein: 6g
  • Cholesterol: 60mg

Tips for the Perfect Brown Sugar Cinnamon Crumble Bake

After making this recipe dozens of times (and eating way too many test batches), I’ve learned a few secrets for absolute breakfast perfection:

  • Old-fashioned oats are non-negotiable – Quick oats turn mushy, while the thicker rolled oats give that perfect chewy texture we love
  • The toothpick test lies! Instead, look for golden edges pulling away from the pan and a slightly springy center when gently pressed
  • Let it rest 5 minutes – I know it’s hard to wait, but this helps the bake set for cleaner slices
  • Reheat leftovers in the toaster oven – It brings back that wonderful crispy texture better than microwaving

Ingredient Substitutions

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We’ve all been there – halfway through a recipe only to realize we’re missing an ingredient! Here are my tried-and-true swaps that still deliver amazing results:

  • Milk: Almond milk or oat milk work beautifully, though the bake might be slightly less rich. For extra creaminess, try half coconut milk!
  • Brown sugar: Coconut sugar gives a similar caramel note, or mix 1 tablespoon molasses with 1/2 cup white sugar in a pinch.
  • Butter: Coconut oil (melted) works, but you’ll miss that lovely buttery flavor. For dairy-free, I prefer vegan butter sticks.
  • Eggs: 1 mashed banana or 1/4 cup applesauce per egg works, but the texture will be more dense.

Serving Suggestions

This bake is delicious on its own, but here’s how we love to jazz it up: dollop of Greek yogurt for tang, fresh berries for brightness, or a generous drizzle of warm maple syrup when we’re feeling extra indulgent. Sometimes I’ll even sprinkle extra cinnamon sugar on top while it’s still warm – the kids go wild for that!

Storage and Reheating

Leftovers (if you have any!) keep beautifully in an airtight container for up to 3 days. For that just-baked taste, reheat squares in the toaster oven or microwave for 15-20 seconds – though I swear they taste even better the next day when the flavors have settled together!

Brown Sugar Cinnamon Crumble Bake FAQs

I get asked these questions all the time – here are the answers straight from my kitchen to yours:

Can I use quick oats instead of old-fashioned?
Oh honey, I don’t recommend it! Quick oats absorb liquid differently and turn mushy. The texture just isn’t the same. If that’s all you have, reduce the milk by 2 tablespoons and bake 5 minutes less.

Can I make this the night before?
Absolutely! Mix the wet and dry ingredients separately, then combine and bake in the morning. The unbaked mixture keeps beautifully in the fridge overnight – just give it an extra stir before pouring into the pan.

Does this freeze well?
You bet! Cool completely, then wrap individual squares tightly. They’ll keep for up to 2 months. To reheat, pop frozen squares in the toaster oven at 300°F until warmed through – about 10 minutes. The edges get delightfully crisp again!

Nutritional Information

Nutrition facts can vary depending on your specific ingredients and brands, but this cozy bake offers a good balance of whole grains, protein, and just enough sweetness to start your day right. As with any homemade recipe, portions and ingredients affect the final numbers – listen to your body and enjoy!

Try this recipe on your next lazy morning and tag me with your results – I’d love to see your cozy breakfast creations! Follow along on Facebook for more delicious updates!

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Emily Frost
Emily Frost

Hi, I’m Emily Frost — mom of two, home cook, and the creator of Frosty Recipes! Here you’ll find easy, family-friendly meals from Wendy’s copycat favorites to cozy dinners, sweet desserts, and everything in between.

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