Moist & Tangy Key Lime Pound Cake

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My strongest belief in the universe — besides the right to extra butter — is that the Key Lime Pound Cake deserves a tiny parade and possibly a brass band. If you think citrus belongs only in cocktails (I stare at you, summer patio enthusiasts), you’re wrong. Dead wrong. This cake is moist, tangy, and will make you rethink dessert priorities. Also: Trader Joe’s key lime curd is a weakness of mine. Guilty. Small joys. Tiny crimes.
The disaster that taught me to respect citrus (and humility)
I once tried to scale this cake up for Thanksgiving because of course I did — because why ever make one loaf when you can attempt a 12-inch monstrosity that screams “I have an audience”? Long story short: the center collapsed, Aunt Janet staged a coup with her pumpkin pie, and the dog learned a new vocabulary word (eat). I learned two things that week: one, always trust butter; two, never underestimate the structural drama of acid in batter. Also, someone filmed the meltdown and yes, it’s still used as blackmail at family reunions.
Okay, back to the recipe before I spiral into pastry therapy
ANYWAY, before I emotionally relive the entire event like it’s a soap opera for bakers, let’s talk about how this loaf actually works — and why it’s worth forgiving past catastrophes. If you want something equally citrusy but in a different mood, I sometimes pair this with the bright punch of my orange cake recipe, which is basically sunshine in slices (not sponsored, just obsessed). Also: I’ve tried to shortcut with cheap limes and paid for it in texture and attitude. Lesson learned. Again.
The Ingredients (yes, measured — I promise)
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon salt
- 1/2 cup unsalted butter, softened
- 1 cup granulated sugar
- 2 large eggs
- 1/4 cup key lime juice
- 1 teaspoon vanilla extract
- 1/4 cup milk
- Zest of 1 lime
- For the glaze: 1 cup powdered sugar, 2 tablespoons key lime juice, lime zest for garnish
Mini-rants: Use fresh key lime juice if you can (yes, I went to three stores once — Trader Joe’s was out, Aldi had suspiciously tiny limes, and I cried in produce). If you must, bottled will do in a pinch, but your cake will look at you with disappointment. Fancy butter = better crumb, but if you’re on a budget, good-enough butter from the Midwest aisle still sings. Shopping tip: my neighborhood Trader Joe’s sometimes stocks bagged key limes; buy them like you’re hoarding joy.
Handy Cooking Unit Converter (because math and baking get dramatic)
If you like your measuring precise or you’re converting like I am at 2 a.m. while baking, this tool helps keep your life in check.
Technique, the chaotic teacher I learned from
I could write a ten-step manifesto, but instead I’ll ramble like a human who’s both proud and a little embarrassed by their flour-coated hands: beat the butter and sugar until it looks like tiny clouds (yes, clouds). Don’t overmix once the flour goes in — the cake will toughen like my college dorm roommate who refused to do dishes. And here’s what I learned the hard way: lime zest is magic but too much is a scream; balance is where the angel choir sings. The batter should feel like velvet, not glue (if glue, add milk — gently). The aroma while baking is a citrus hug that will make your neighbor suddenly very interested in your social calendar.
- Preheat your oven to 350°F (175°C) and grease a loaf pan.
- In a bowl, whisk together flour, baking powder, and salt.
- In another bowl, beat the softened butter and sugar until light and fluffy.
- Add eggs one at a time, mixing well after each addition, then blend in key lime juice and vanilla.
- Gradually add the dry ingredients to the wet mixture, alternating with milk. Stir in lime zest.
- Pour the batter into the prepared loaf pan and smooth the top.
- Bake for 50-60 minutes or until a toothpick inserted in the center comes out clean.
- Let the cake cool in the pan for 10 minutes, then transfer to a wire rack.
- For the glaze, mix powdered sugar and key lime juice until smooth, then drizzle over the cooled cake. Garnish with lime zest.
Why I bake (therapy, tradition, loud feelings)
Cooking is my family’s language — my grandma’s thin-crust pizza that smelled like garlic and patience, the neighborly bake sales on rainy Saturdays, the chaotic Thanksgiving when everyone contributed casserole-shaped evidence of love. Food is memory made edible; every stir and squeeze of lime is a tiny ritual that keeps me grounded. Sometimes I cry a little when I glaze (it’s the humidity), sometimes I dance, but always, always it’s how I say “I care” without writing a long email.
Tiny story: the lime that saved Thanksgiving
Once, my cousin forgot to bring dessert to a teeny, chaotic potluck. I had one loaf cooling, three forks, and zero shame — I sliced that cake into heroic pieces and fed an entire table of suspicious eaters who then nodded like it was the second coming. Two-word review: converted skeptics.
Frequently Asked Questions (chaotic but useful)
Yes, you can, and I won’t scold you — much. Regular limes are slightly less floral but perfectly fine when life (or Trader Joe’s) intervenes.
Maybe: swap the milk for almond milk and the butter for a vegan block, but the texture will change (still tasty, slightly different vibe). Test on a friend first.
Gently press the top — it should spring back like a tiny pastry trampoline. If it’s jiggly, give it more time. Patience, young baker.
Absolutely. Wrap tight and freeze; thaw in the fridge or at room temp. Perfect for emergency dessert needs (and yes, I have a frozen stash).
Add more powdered sugar a tablespoon at a time until it stops acting like runway lotion. If too thick, a splash more lime juice. Balance, always balance.
Okay, I’ll stop talking now. This cake will make your kitchen smell like citrus confessions, your guests ask for seconds, and possibly your aunt forgive you for that one karaoke Thanksgiving (long story). Bake it, slice it, eat it with reckless joy. You deserve it.
Daily Calorie Needs Calculator (for those counting while still living their best life)
Use this quick tool if you want a rough idea of calories per slice while you plan your dessert diplomacy.

Key Lime Pound Cake
Ingredients
Method
- Preheat your oven to 350°F (175°C) and grease a loaf pan.
- In a bowl, whisk together flour, baking powder, and salt.
- In another bowl, beat the softened butter and sugar until light and fluffy.
- Add eggs one at a time, mixing well after each addition, then blend in key lime juice and vanilla.
- Gradually add the dry ingredients to the wet mixture, alternating with milk. Stir in lime zest.
- Pour the batter into the prepared loaf pan and smooth the top.
- Bake for 50-60 minutes or until a toothpick inserted in the center comes out clean.
- Let the cake cool in the pan for 10 minutes, then transfer to a wire rack.
- For the glaze, mix powdered sugar and key lime juice until smooth, then drizzle over the cooled cake.
- Garnish with lime zest.





