Oatmeal Coffee Cake – A Cozy Classic with Coconut & Crunchy Topping

Oatmeal Coffee Cake ✨

If you’re the kind of person who lights up at the smell of cinnamon, toasted coconut, and warm baked oats—this Oatmeal Coffee Cake is your dream come true. With a soft and tender crumb from soaked oats and a broiled brown sugar topping packed with coconut and pecans, it’s got that perfect blend of rustic charm and bakery-style indulgence.

Whether served as a brunch centerpiece or afternoon snack, this cake delivers nostalgic comfort with every forkful.


Why I Love This Recipe

This cake feels like a warm hug. It’s moist, subtly spiced, and perfectly sweet, with a topping that caramelizes beautifully under the broiler for a delightful crunch. I love that it comes together with pantry staples and doesn’t require layering or frosting—just old-fashioned goodness in one baking dish. And it pairs so well with a cold glass of blueberry lemonade or a hot mug of coffee.


🛒 Ingredients

For the Cake:

  • 1 cup old-fashioned oats
  • 1¼ cups boiling water
  • ½ cup unsalted butter, softened
  • 1 cup granulated sugar
  • ½ cup brown sugar, packed
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1½ cups all-purpose flour
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 1 teaspoon cinnamon

For the Topping:

  • ½ cup brown sugar, packed
  • ½ cup shredded coconut
  • ½ cup chopped pecans or walnuts
  • 4 tablespoons unsalted butter, melted
  • 2 tablespoons heavy cream

🍰 Ingredient Notes & Variations

  • Oats: Old-fashioned oats give the best texture. Avoid quick oats.
  • Nuts: Swap in almonds or hazelnuts if preferred.
  • Coconut-free? Leave it out or sub with crushed graham crackers.
  • Add-ins: Stir a handful of chocolate chips or raisins into the batter for extra flair.

👩‍🍳 Instructions

1. Prep the Oats

In a small bowl, combine oats and boiling water.
Let them sit for 10 minutes to soften and cool slightly.

2. Mix the Batter

Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish.
In a large bowl, cream together buttergranulated sugar, and brown sugar until light and fluffy.
Add eggs and vanilla, mixing until smooth.
Stir in the softened oat mixture.
In a separate bowl, whisk together flourbaking sodasalt, and cinnamon.
Gradually add dry ingredients to the wet mixture, stirring just until combined.
Pour into prepared pan and spread evenly.

3. Bake the Cake

Bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean.
Let cool slightly while you prepare the topping.

4. Make the Topping

In a small bowl, mix brown sugarcoconutchopped nutsmelted butter, and heavy cream.
Spread the topping evenly over the warm cake.

5. Broil & Finish

Place cake under the broiler for 2–3 minutes—watch closely!
The topping should become bubbly and golden brown.
Let cool slightly before slicing.


💡 Tips for Success

  • Soften butter ahead of time for better creaming.
  • Use boiling water for oats—lukewarm water won’t soften them enough.
  • Don’t overmix once the flour goes in—mix just until combined.
  • Broil with care: It only takes a minute or two for the topping to go from golden to burnt.

🍽 Serving Suggestions & Pairings

This cozy cake is a lovely match for:


🧊 Storage & Make-Ahead Tips

  • Storage: Keep covered at room temperature for up to 3 days, or in the fridge for up to 5 days.
  • Freezing: Wrap tightly and freeze in portions for up to 2 months.
  • Reheat: Microwave slices for 10–15 seconds to revive the gooey topping.

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Final Thoughts

This Oatmeal Coffee Cake brings warmth, texture, and just the right amount of sweetness to your table. Whether you’re baking for guests, a brunch spread, or simply want to treat yourself to a cozy slice, this recipe delivers.

Tried it? Let us know! Share your pics, tag @ChefManiac, and don’t forget to explore more nostalgic and feel-good bakes at ChefManiac.com.