Key Lime Zest Layered Cake

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A tangy and sweet key lime cake featuring layers of lime zest-infused cake and smooth lime cream cheese frosting. This american-inspired desserts ready in about 50 minutes layers all-purpose flour, baking powder, salt into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 320 calories and feeds 12, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 30 min Serves 12 American cuisine 320 cal/serving
Plan a meal with the AI → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Instructions

  1. Step 1: Preheat the oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
  2. Step 2: In a medium bowl, whisk together 2 1/2 cups all-purpose flour, 2 1/2 tsp baking powder, and 1/2 tsp salt.
  3. Step 3: In a large bowl, beat 1 cup softened unsalted butter and 1 3/4 cups granulated sugar until light and fluffy, about 3 minutes.
  4. Step 4: Add 4 large eggs one at a time, beating well after each addition. Stir in 2 tbsp key lime zest.
  5. Step 5: Add the flour mixture alternately with 3/4 cup whole milk, beginning and ending with flour mixture, mixing until just combined.
  6. Step 6: Mix in 1/2 cup fresh key lime juice gently until batter is smooth.
  7. Step 7: Divide the batter evenly between the two pans and bake for 28-32 minutes, or until a toothpick inserted in the center comes out clean. Cool in pans for 10 minutes, then turn out onto wire racks to cool completely.
  8. Step 8: For the frosting, beat 8 oz softened cream cheese until smooth. Gradually add 3 cups sifted powdered sugar and 1 tsp vanilla extract, beating until fluffy.
  9. Step 9: Once cakes are fully cooled, spread a generous layer of frosting on the first cake layer, top with the second layer, then frost the outside evenly. Chill for 1 hour before serving to set.

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Bakeware & baking tools → Shop all kitchen tools →

Frequently asked questions

How long does Key Lime Zest Layered Cake take to make?

Total time is about 50 minutes (20 min prep + 30 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Key Lime Zest Layered Cake?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Key Lime Zest Layered Cake?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Key Lime Zest Layered Cake for a different number of people?

The recipe is written for 12 servings. Multiply each ingredient by (your serving target / 12). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Key Lime Zest Layered Cake?

American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.