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Cake Mix Coffee Cake

Cake Mix Coffee Cake is a soft, tender cake layered with a brown sugar-cinnamon streusel and finished with a simple vanilla glaze. It's a perfect quick-bake option for breakfasts, brunches, or sweet snacking.

Ingredients
  

For the Cake:

  • 1 box yellow cake mix
  • 1 cup sour cream
  • 4 large eggs
  • ½ cup vegetable oil

For the Cinnamon Streusel:

  • 1 cup brown sugar packed
  • 1 tablespoon ground cinnamon
  • ½ cup chopped pecans optional

For the Glaze:

  • 1 cup powdered sugar
  • 2 tablespoons milk
  • ½ teaspoon vanilla extract

Instructions
 

  • Preheat to 350°F (175°C). Grease a 9x13-inch baking dish with nonstick spray or butter.
  • In a large bowl, mix yellow cake mix, sour cream, eggs, and vegetable oil until smooth and creamy. Use a hand mixer or whisk.
  • In a medium bowl, stir together brown sugar, ground cinnamon, and chopped pecans if using.
  • Spread half the batter into the dish. Sprinkle half the streusel on top. Repeat with remaining batter and streusel.
  • Bake for 35–40 minutes, until a toothpick inserted in the center comes out clean or with a few moist crumbs.
  • Let the cake cool in the pan for 20 minutes before glazing.
  • Whisk powdered sugar, milk, and vanilla extract in a small bowl until smooth and pourable. Adjust milk if needed.
  • Drizzle glaze over the slightly warm cake, letting it seep into the crevices.