Gluten-Free Easy Carrot Cake
A simple sheet cake combining boxed yellow cake mix with fresh shredded carrots and warm cinnamon spice. Light butter and fat-free sour cream keep the frosting tender without heaviness. Perfect for weeknight desserts, potlucks, or casual gatherings when you want homemade flavor with minimal effort. The one-bowl mixing and short bake time make this accessible to novice bakers.
Ingredients
- 1 package (15.25-16.5 oz) yellow cake mixvanilla cake mix1:1vegetarian
subtler flavor
- ½ cup Land O Lakes Light Butter with Canola Oil, melted, cooledregular butter1:1dairy
adds richness but increases fat content
- 3 large eggs
- 1 ¼ cups water
- 2 cups carrots, shredded
- 2 teaspoons ground cinnamon
- 3 cups powdered sugar
- ¼ cup fat free sour creamGreek yogurt1:1dairyprotein
tangier flavor, adds protein
- 2 tablespoons Land O Lakes Light Butter with Canola Oilregular butter1:1dairy
adds richness but increases fat content
- ½ teaspoon vanilla extract
Instructions
- 1
Heat oven to 350°F and spray a 13x9-inch pan with cooking spray.
- 2
Combine cake mix, melted light butter, eggs, and water in a large bowl. Beat according to package directions.
- 3
Stir carrots and cinnamon into batter.
- 4
Pour batter into prepared pan.
- 5
Bake 32-37 minutes until a toothpick inserted in the center comes out clean.
- 6
Cool cake completely.
- 7
Combine powdered sugar, sour cream, light butter, and vanilla in a large bowl.
- 8
Beat at medium speed, scraping the bowl often, until frosting is creamy.
- 9
Spread frosting over cooled cake.
Tips
Use fresh, finely shredded carrots for best moisture and sweetness. Avoid pre-packaged shredded carrots when possible, as they dry out during storage.
Do not overmix the frosting or it becomes grainy. Beat just until smooth and spreadable for creamy results.
Cool the cake completely before frosting to prevent melting and sliding.
Good to Know
Cover tightly and refrigerate up to 3 days. Frosting prevents drying. Room temperature storage not recommended due to sour cream.
Bake cake one day ahead and store unfrosted. Frost the morning of serving for best texture. Frosting can be made 4 hours ahead and refrigerated; bring to room temperature before spreading.
Cut into 12-16 pieces. Serve at room temperature or chilled. Pairs well with coffee, tea, or cold milk.
Common Mistakes
Overmix frosting to avoid a grainy, broken texture.
Do not frost warm cake to avoid frosting sliding off and melting.
Do not substitute full-fat sour cream without reducing other fat to avoid overly dense crumb.
Do not skip the carrots or reduce quantity to maintain moisture and signature flavor.
Substitutions
Dairy-Free Swaps
adds richness but increases fat content
Vegan Options
General Alternatives
subtler flavor
FAQ
Can I make this cake without a box mix?
Yes. Use a scratch vanilla cake recipe and add 1 teaspoon vanilla extract to the batter. The boxed mix version is faster and more forgiving for beginners. Scratch versions require sifting flour and balancing leavening agents.
Can I freeze this cake?
Freeze unfrosted cake wrapped in plastic wrap and foil up to 2 months. Thaw at room temperature before frosting. Frosted cake can freeze up to 1 month but frosting may separate slightly upon thawing.
What if I don't have light butter?
Use regular unsalted butter at 1:1 ratio. The cake will have richer flavor and slightly higher fat. Oil (vegetable or canola) also works at 1:1 but produces a less tender crumb and less buttery taste.