
Cinnamon Oatmeal Streusel Muffins
Ingredients
- 1 1/2 cups all-purpose flour
- 1 1/4 cups rolled oats
or large flake oats
- 1 tsp baking soda
- 1 1/2 tsp baking powder
- 1 tbsp cornstarch
- 1/4 tsp salt
- 2 tsp cinnamon
- 1/8 tsp nutmeg
optional
- 1/8 tsp cloves
optional
- 3/4 cups dark brown sugar*
- 1 tbsp vanilla
- 1/2 cup oil
- 2 eggs
room temperature
- 3/4 cups full-fat sour cream
room temperature
- 1/2 cup milk
room temperature
- 1/2 cup all-purpose flour
- 4 tbsp butter
softened
- 1/4 cup white sugar
- 2 tbsp dark brown sugar
- 1/4 cup large flake oats
- 1/2 tsp cinnamon
Directions
- 1
In a medium sized bowl, add flour, white sugar, dark brown sugar, cinnamon, rolled oats, and softened butter. Using your hands, mix this until crumbly and combined. Set aside while you make the muffin batter.
- 2
Preheat the oven to 375℉. Line a muffin liner with 12 liners and set aside.

Cinnamon Oatmeal Streusel Muffins
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About this Recipe
Craving a cozy breakfast that feels like a warm hug? These Cinnamon Oatmeal Streusel Muffins deliver on all fronts, offering a delightfully soft and fluffy texture paired with rich, comforting flavors that make any morning brighter.
Why These Muffins Shine
What makes these muffins truly special is the perfect harmony of hearty oats and aromatic cinnamon, elevated by a phenomenal streusel. The oatmeal sugar streusel isn't just a topping; it crisps up beautifully in the oven, creating that irresistible crunchy complement to the tender muffin beneath and giving you a perfect muffin top every time. Each bite promises a satisfying blend of texture and authentic cinnamon warmth.
When you bite into one of these Cinnamon Oatmeal Streusel Muffins, expect a wonderfully soft and fluffy crumb, generously studded with hearty oats. The dominant flavor is a comforting cinnamon, enhanced by the subtle richness of dark brown sugar. The streusel provides a delightful crunch and an extra layer of sweetness, ensuring a balanced and satisfying experience. These muffins are designed to be a substantial yet tender treat, full of wholesome goodness.
Customization & Variations
This recipe provides flexibility with your oats, allowing you to use either rolled oats or large flake oats for the muffin batter, ensuring a hearty texture. For an extra layer of spice, feel free to include the optional nutmeg and cloves in the batter, adjusting the intensity to your preference. If you don't have dark brown sugar, light brown sugar can be substituted in a pinch, though the deeper molasses notes of dark brown sugar are recommended for the richest flavor.
These muffins are ideal for a leisurely breakfast, a quick grab-and-go snack, or a comforting treat with your afternoon coffee or tea. Serve them warm to fully appreciate their soft texture and aromatic spices.







