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Easy Key Lime Pie Recipe
Ash Tyrrell

Easy Key Lime Pie Recipe

I still remember the first time I made this easy key lime pie recipe for a backyard dinner with friends. It disappeared before I even got a slice. I love it because it comes together with just a handful of ingredients and no fancy skills required. There's something about that sweet-tart lime filling against a crumbly graham crust that makes me crave it every summer
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Total Time 3 hours 30 minutes
Servings: 8
Ingredients Method Notes

Ingredients
  

  • 5 egg yolks — these give the filling its rich custardy texture, so don't toss the whites, save them for meringue another day
  • 1 14-ounce can sweetened condensed milk — this is what thickens the filling without needing gelatin or cornstarch
  • 1/2 cup key lime juice — fresh-squeezed is best but good-quality bottled key lime juice works in a pinch
  • 1 tablespoon lime zest optional — adds an extra punch of citrus aroma and a prettier green fleck throughout
  • 1 9-inch prepared graham cracker crust — a huge time-saver, though a homemade one tastes even better if you have 10 extra minutes
  • Whipped cream or whipped topping for garnish — balances the tartness with a touch of creamy sweetness

Method
 

  1. I always start by preheating my oven to 375°F so it's fully ready the moment my filling is mixed. A properly heated oven helps the eggs set evenly instead of cooking unevenly around the edges. While it heats up, I set my graham cracker crust on the counter so it's not fridge-cold when the filling goes in.
  2. In a mixing bowl, I beat the five egg yolks until they turn a little pale and slightly thickened. This step only takes about a minute with a whisk or hand mixer. Getting the yolks well-beaten first helps the filling blend smoother once the other ingredients join in.
  3. Next, I pour in the sweetened condensed milk and key lime juice, whisking everything together until it's completely smooth. The mixture will thicken slightly as the acid from the lime juice reacts with the condensed milk. If I'm using zest, this is when I stir it in for extra flavor.
  4. I pour the lime filling straight into my prepared graham cracker crust, using a spatula to scrape the bowl clean. I give the pie plate a gentle shake to help the filling settle into an even layer. This little step prevents any lopsided slices later.
  5. I slide the pie into my preheated oven and bake it for about 15 minutes, just until the center looks mostly set with a slight jiggle. Overbaking can make the filling rubbery, so I keep a close eye on it after the 12-minute mark. The edges should look just barely set when I pull it out.
  6. Once it's out of the oven, I let the pie cool on a wire rack for about 30 minutes before transferring it to the fridge. It needs at least 2 to 3 hours of chilling to fully set into clean, sliceable pieces. I know it's ready when the center feels firm, not wobbly, to a light touch.
  7. Right before serving, I top my pie with a layer of whipped cream or whipped topping. A few lime slices or a little extra zest on top make it look bakery-worthy. Then it's just a matter of slicing and watching it vanish.

Notes

  • I always use room-temperature egg yolks since they blend into the condensed milk much more smoothly than cold ones.
  • I never skip the brief bake; it sets the eggs safely and gives the filling a firmer, sliceable texture.
  • I like adding a pinch of lime zest right into the filling, not just on top, for a deeper citrus flavor in every bite.
  • I chill my pie for the full three hours, even when I'm tempted to rush it, because a half-set pie never slices cleanly.
  • I keep my whipped cream separate until serving time so the pie doesn't get soggy while it's chilling.