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Yellow Cake Mix Dessert That Tastes Homemade - Simple, Cozy, and So Good

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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 12 servings

Ingredients
  

  • 1 box yellow cake mix (15.25 oz)
  • 1/2 cup unsalted butter, melted and slightly cooled
  • 3 large eggs plus 1 extra yolk
  • 1 cup sour cream (full-fat for best texture)
  • 1/3 cup milk (whole or 2%)
  • 2 teaspoons pure vanilla extract
  • 1/4 teaspoon fine salt
  • Optional cinnamon-sugar topping: 1/4 cup granulated sugar + 1 teaspoon ground cinnamon
  • Optional glaze: 1 cup powdered sugar, 2–3 tablespoons milk, 1/2 teaspoon vanilla
  • Nonstick baking spray or butter for the pan

Instructions
 

  • Prep the pan and oven: Heat oven to 350°F (175°C). Grease a 9x13-inch pan or a Bundt pan. Lightly flour if using butter.
  • Combine the wet ingredients: In a large bowl, whisk melted butter, eggs, extra yolk, sour cream, milk, and vanilla until smooth.
  • Add the dry mix: Sprinkle in the cake mix and salt. Stir with a spatula until just combined. Don’t overmix.
  • Optional cinnamon layer: If using, pour half the batter into the pan. Mix cinnamon and sugar, sprinkle evenly, then add the rest of the batter.
  • Bake: Bake 28–35 minutes for a 9x13, or 40–45 minutes for a Bundt, until the center springs back and a toothpick comes out clean.
  • Cool: Let cool in the pan 10–15 minutes. For a Bundt, loosen edges and invert onto a rack. Cool completely if glazing.
  • Glaze or dust: For glaze, whisk powdered sugar, milk, and vanilla until pourable. Drizzle over the cooled cake. Or dust with powdered sugar.
  • Slice and serve: Cut into squares or slices. It’s great warm or at room temperature.