Fall's Perfect Coffee Cake

Simple, cozy, and ready for apple season variations

Our Family's Go-To Cinnamon Oatmeal Coffee Cake

The smell of cinnamon and vanilla filling the kitchen on a crisp fall morning never gets old. This coffee cake has saved us countless times for lazy weekend brunches, unexpected guests, and those moments when you need something sweet but don't want to spend hours in the kitchen. It's embarrassingly easy to throw together, yet impressive enough that people always ask for the recipe.

What makes this particular version special is how we've learned to amp up the cozy factor over the years. We're generous with the cinnamon (sometimes doubling it) and never skimp on the vanilla – those warming spices are what transform a simple coffee cake into something that feels like a warm hug. With apple season in full swing, I've been dreaming up variations that would make this fall favorite even more seasonal. Think diced Honeycrisp apples folded into the batter, a maple glaze drizzled on top, or even some chopped pecans mixed into that gorgeous streusel layer.

Cinnamon Oatmeal Coffee Cake

Serves 12-16

For the Batter:

• 1¼ cups (250g) granulated sugar

• ¾ cup (1½ sticks) unsalted butter, room temperature

• ¼ cup packed light brown sugar

• 3 large eggs

• 1¼ cups sour cream

• 1 tsp pure vanilla extract

• 2¼ cups (270g) all-purpose flour

• ¼ cup cornstarch

• 2 tsp baking powder

• ½ tsp baking soda

• 1 tsp kosher salt

For the Streusel:

• 1 cup (200g) packed light brown sugar

• ¾ cup (90g) all-purpose flour

• ½ cup old-fashioned rolled oats

• ¾ cup (1½ sticks) unsalted butter, melted

• 1 Tbsp ground cinnamon

• ¼ tsp ground nutmeg

• Pinch of kosher salt

Instructions:

Prepare the base:

1. Preheat oven to 350°F and line a 13" × 9" pan with parchment paper.

2. In a large bowl, using a handheld mixer on medium-high speed, beat granulated sugar, butter, and brown sugar until light and fluffy, about 3-4 minutes.

3. Add eggs one at a time, beating well after each addition. Beat in sour cream and vanilla until just combined.

4. In another bowl, whisk together flour, cornstarch, baking powder, baking soda, and salt.

5. Slowly add dry ingredients to the wet mixture, beating on medium-low speed until just incorporated.

Make the streusel and assemble:

1. In a medium bowl, whisk together brown sugar, flour, oats, melted butter, cinnamon, nutmeg, and salt until combined and crumbly.

2. Spread half the batter in the prepared pan. Top with half the streusel mixture.

3. Add remaining batter, spreading to edges, then top with remaining streusel.

4. Bake 50-55 minutes, until a tester inserted in center comes out clean.

5. Cool slightly on a wire rack before serving.

Fall Variations to Try:

• Apple Cinnamon: Fold 1½ cups diced Honeycrisp or Granny Smith apples into the batter

• Maple Pecan: Add ½ cup chopped pecans to streusel and drizzle with maple glaze when cool

• Pumpkin Spice: Replace ¼ cup sour cream with pumpkin puree and add ½ tsp pumpkin pie spice to batter

• Brown Butter: Brown the butter for the streusel before mixing for a nutty, deeper flavor

Original recipe from Delish

---

Cari Ann Carter is the best-selling author of Are Your Roots Right? Rightsize Your Space. Reclaim Your Life. and a multi-faceted entrepreneur with a passion for intentional living, design, and home.

She leads the Cari Ann Carter Group, bringing over 28 years of experience in real estate, design, build, and renovation, and is the creative voice behind DIY Designer Homestead.

Through Fresh Roots Living, she shares practical ideas for cooking, gardening, entertaining, and creating a home that supports your next chapter.