Mom's Best Recipes
Recipe

Key Lime Cheesecake

Creamy, tangy, and loaded with lime flavor on a buttery graham cracker crust.

Author By Matt Campbell
4.8
A tall slice of key lime cheesecake on a white plate with a graham cracker crust and a few lime zest curls on top
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If you want dessert that tastes like a vacation but behaves like a reliable weeknight recipe, this key lime cheesecake is it. It hits that perfect sweet-tart balance, with a creamy filling that sets up like a dream and a graham cracker crust that stays crisp instead of going soggy and sad.

I keep this one friendly on purpose: no mystery techniques, no complicated water bath that makes you feel like you are defusing a bomb. We are going to use room temp cream cheese, a little sour cream for tang, and plenty of lime juice and zest so the flavor actually shows up. Then we chill it long enough for the texture to go from soft to sliceable and luxurious.

Key limes, graham crackers, cream cheese, sour cream, eggs, butter, and sugar arranged on a kitchen counter ready for baking

Why It Works

  • Bright lime flavor that tastes real: zest plus juice gives you that punchy citrus without tasting like candy.
  • Ultra creamy texture: room temperature dairy and gentle mixing keep it smooth, not airy or cracked.
  • No water bath needed: we bake low, then cool gradually to avoid drama.
  • Make-ahead friendly: it actually gets better after an overnight chill, which is the best kind of dessert planning.

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Storage Tips

Refrigerator

Cover the cheesecake (or individual slices) and refrigerate for up to 5 days. I like to press plastic wrap against any cut edges, then add a second layer of foil to keep it from picking up fridge smells.

Freezer

Freeze slices for up to 2 months. Chill the cheesecake first, slice, then freeze slices on a sheet pan until firm. Wrap each slice tightly in plastic wrap and place in a freezer bag.

Thawing

Thaw overnight in the fridge. If you are in a hurry, a slice can sit at room temp for 20 to 30 minutes, but do not let the whole cake hang out too long.

Common Questions

Can I use regular limes instead of key limes?

Yes. Key limes are more floral and a little sharper, but regular Persian limes work great. If you use regular limes, add a touch more zest to mimic that key lime intensity.

Do I have to use bottled key lime juice?

No, but you can. Fresh is brightest, bottled is convenient and consistent. If you use bottled, still use fresh zest because bottled juice cannot replace that aromatic pop. Also, bottled brands vary a bit in tartness, so taste your batter and adjust with a little extra zest if you want it punchier.

How do I stop cheesecake from cracking?

Three big moves: use room temperature ingredients, do not overmix once the eggs go in, and cool it gradually. This recipe also includes a little sour cream which helps keep the texture tender.

Can I make it without a springform pan?

A springform is easiest, but you can bake it in a deep-dish pie plate. Expect a softer slice and serve it pie-style. Keep the bake time similar and use visual cues: set edges, slight jiggle in the center.

How do I know it is done baking?

The edges should look set and slightly puffed, and the center should still have a gentle wobble, like gelatin, not like liquid. If you have an instant-read thermometer, aim for around 150°F in the center (probe placement matters, so use the jiggle test as the main cue).

I love key lime anything because it tastes loud in the best way. The first time I tested this cheesecake, I got impatient and sliced it before it fully chilled. Delicious, yes. Also, structurally… a little like a lime flavored lava flow. Now I treat the chill time like it is part of the recipe, not a suggestion, because the payoff is that clean, creamy slice that makes you feel like you have your life together, even if your kitchen is covered in zest.