For our featured Apple Coffee Cake Recipe, you'll need:
1box yellow cake mix(15.25 oz)
3large eggs, at room temperature
⅓cupvegetable oil(can substitute with melted butter or applesauce for a healthier version)
¼cupwater
½cupsour cream(Greek yogurt works as an excellent substitute)
2medium apples, peeled and diced (Granny Smith or Honeycrisp recommended)
1teaspoonground cinnamon
½teaspoonnutmeg
For the cinnamon streusel topping:
⅓cupall-purpose flour
⅓cuppacked brown sugar
¼cupcold butter, cubed
1teaspoonground cinnamon
½cupchopped walnuts or pecans(optional)
Instructions
Step 1: Prepare Your Baking PanPreheat your oven to 350°F (175°C). Grease and flour a 9x13-inch baking pan or spray with non-stick cooking spray. For a more impressive presentation, you can use a bundt pan, but be sure to grease every crevice thoroughly.Step 2: Create the Cake BatterIn a large mixing bowl, combine the cake mix, eggs, oil, water, and sour cream. Using an electric mixer, beat on medium speed for about 2 minutes until smooth and well combined. The sour cream is your secret ingredient here—it adds incredible moisture and richness that transforms the boxed mix into something that tastes completely homemade.Step 3: Prepare the ApplesToss the diced apples with cinnamon and nutmeg in a small bowl until evenly coated. This pre-seasoning step ensures the apple flavor penetrates throughout the cake rather than remaining isolated.Step 4: Make the Streusel ToppingIn a medium bowl, combine flour, brown sugar, and cinnamon. Using a pastry cutter or two forks, cut in the cold butter until the mixture resembles coarse crumbs. Stir in nuts if using. Keep this mixture refrigerated until ready to use for the best texture contrast.Step 5: Assemble and BakePour half the batter into the prepared pan, spreading evenly. Layer half the seasoned apples over the batter, then sprinkle with one-third of the streusel mixture. Add remaining batter, top with remaining apples, and finish with the rest of the streusel topping.Bake for 35-40 minutes, or until a toothpick inserted in the center comes out clean. The cake should be golden brown, and your kitchen will fill with an irresistible cinnamon-apple aroma.