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–+ servings
key lime pound cake turned at an angle on wire cooling rack with two slices laying in front on marble surface, with a knife and key limes around, a stack of plates, an empty glass, and an glass with white flowers behind.

Key Lime Sour Cream Pound Cake

This Key Lime and Sour Cream Pound Cake is sweet, dense, and full of bright key lime flavor! Bonus? It's easy to make, a real crowd pleaser, and is the perfect cake to make for any and every occasion!
Course: Desserts
Cuisine: American
Prep Time: 15 minutes
Cook Time: 1 hour 5 minutes
Total Time: 1 hour 20 minutes
Servings: 10
Calories: 372kcal

Ingredients

Cake

  • 1⅛ cup sour cream
  • ⅞ cup vegetable oil
  • 3 large eggs room temperature
  • 3 Tablespoons key lime juice
  • 2 cups all purpose flour*
  • 1¼ cup granulated sugar
  • 2 Tablespoons key lime zest
  • 1⅓ teaspoon baking powder
  • ¼ teaspoon baking soda
  • ⅔ teaspoon salt

Icing

  • 1 cup powdered sugar sifted
  • 2 Tablespoons key lime juice

Instructions

Cake

  • Heat oven to 350℉.
  • Spray a 9 inch loaf pan with baking spray. Set aside.
  • In a large bowl, whisk together sour cream, vegetable oil, eggs, egg yolk, and lime juice.
  • Whisk in flour, sugar, zest, baking powder, baking soda, and salt.
  • Whisk until smooth.
  • Pour into prepared pan.
  • Bake for 45 minutes, or until cake tests done.
  • Allow to cool 10-15 minutes before turning out.

Icing

  • In a small bowl, whisk together powdered sugar and lime juice until smooth.
  • Spread over top of cooled cake.

Notes

*This recipe was written using an average of the dip and sweep method for measuring flour and the spoon and level method. If you are using a scale, you will need to add 3/4 oz or 22 g  to the measurement for each cup of flour.
Substitutions:
  • If desired, you can use full-fat greek yogurt instead of sour cream.
  • Regular limes can be used in this recipe instead of key limes.
  • This recipe can be made vegan if unsweetened/plain plant-based yogurt and your favorite vegan egg substitute are used. We like to use aquafaba!
Expert Tips:
  • Check the expiration date on your baking soda and baking powder.
  • Remember to preheat your oven.
  • Use an oven thermometer to ensure your oven is at the correct temperature.
  • Pack the lime zest in the measuring spoon. If you scoop lightly, you won't have very much lime flavor.
  • Be careful not to over mix your cake batter!
  • Let the cake cool completely before icing.

Nutrition

Serving: 1slice | Calories: 372kcal | Carbohydrates: 46g | Protein: 4g | Fat: 20g | Saturated Fat: 5g | Polyunsaturated Fat: 8g | Monounsaturated Fat: 5g | Trans Fat: 0.1g | Cholesterol: 69mg | Sodium: 291mg | Potassium: 79mg | Fiber: 1g | Sugar: 28g | Vitamin A: 226IU | Vitamin C: 3mg | Calcium: 60mg | Iron: 1mg