Baked Key Lime Cheesecake Recipe: Zesty Tartness With No Cracking Guarantee

This baked key lime cheesecake recipe delivers the perfect balance of creamy, tangy sweetness without a single crack in sight. 💛 The secret lies in a water bath baking technique and precise temperature control that transforms this dessert from tricky to foolproof. I've perfected this version after years of trial and error—no more soggy crusts or sunken centers here.

The crust gets its signature zing from graham crackers and key lime zest, while the filling combines rich cream cheese with the bright, citrusy flavor of key lime juice and zest. A touch of cornstarch in the filling prevents any unwanted cracks during baking, ensuring that silky-smooth texture you crave in every bite.

What you'll end up with is a cheesecake that's perfectly set but still jiggly in the center, topped with a velvety key lime curd that adds an extra layer of tangy sweetness. The crust stays crisp while the filling remains lusciously creamy—no waiting hours for it to cool, just a smooth, satisfying dessert ready in about 1 hour.

Serve it chilled with a dollop of whipped cream or a sprinkle of toasted coconut for that tropical touch. This recipe makes two 9-inch cheesecakes, so you'll have plenty to share—or save for seconds. Let's get baking!

Ingredients for baked key lime cheesecake

Graham crackers, tangy limes, and creamy cheese—just what you need for this foolproof cheesecake.

The key lime zest and juice are what make this cheesecake shine. Grab 4-6 limes—you'll need about 1 cup of juice after straining. Trader Joe's sells pre-juiced key limes if you're short on time, but fresh is always better. For the cream cheese, Philadelphia brand is my go-to—it's reliable and melts smoothly. If you're using block cheese, let it sit at room temperature for 2 hours before mixing. The graham crackers? Honey Maid or Keebler work perfectly—just crush them finely so the crust stays crisp.

No key limes? Mexican limes or regular limes work in a pinch, but you'll need more zest to get that bright flavor. Running low on cream cheese? Substitute with a mix of mascarpone and sour cream—about 16 oz total. For the crust, if you don't have graham crackers, crushed gingersnaps or digestive biscuits add a nice depth. The cornstarch is non-negotiable—it's what keeps this cheesecake crack-free. If you don't have it, arrowroot powder works too. And if you're feeling fancy, swap the whipped cream topping for a key lime mousse by blending whipped cream with extra lime juice and powdered sugar.

This cheesecake keeps beautifully. Store it in the fridge for up to 5 days, covered tightly. The key lime curd topping? It'll last 3 days refrigerated—just give it a quick stir before serving. For make-ahead baking, assemble the crust and filling a day ahead, then bake when ready. The crust can be pre-baked and stored in an airtight container for 2 days—just bake the filling fresh. And if you're making this for a crowd, double the recipe—it's that good.

Step-by-step instructions for baked key lime cheesecake

Here's how to make the perfect tangy, creamy cheesecake that stays crack-free every time.

First, crush the 2.5 cups graham crackers into fine crumbs—you want them to resemble sand. Mix with the 2 tbsp key lime zest, 0.5 cup melted unsalted butter, and 0.5 cup packed granulated sugar until combined. Press firmly into a 9-inch springform pan and bake at 350°F for 10 minutes. While that cooks, make the curd by whisking together 1 cup key lime juice, 0.25 cup powdered sugar, 0.5 cup heavy whipping cream, and 0.25 tsp salt in a saucepan. Cook over medium heat, stirring constantly, until thickened (5-7 minutes). Pour this warm curd over the crust.

Here's the thing—crusts burn fast. Watch for golden edges at 8 minutes, then remove immediately. For the curd, you'll know it's ready when it coats the back of a spoon and leaves a trail when you run your finger through it. Let the crust cool completely before adding the filling.

Beat the 32 oz cream cheese and 1.5 cups granulated sugar with an electric mixer until ultra-smooth—no lumps allowed. Add the 4 room-temperature eggs one at a time, mixing just until combined after each. Here's where it gets tricky: fold in the 2 tbsp cornstarch and the warm key lime curd gently. You want to maintain air bubbles, but don't overmix or you'll get dense cheesecake.

I like to use a rubber spatula for this step—it helps preserve that light, airy texture. Pour the filling over the cooled crust and tap the pan gently on the counter to remove any air pockets. This prevents sinking later. The batter should look like thick pudding—if it's too runny, your cheesecake will be too dense.

Place the cheesecake in a water bath—wrap the springform pan tightly in foil, then place it in a larger baking pan. Pour hot water into the larger pan until it reaches halfway up the sides of the springform. Bake at 325°F for 60-70 minutes. The edges should be set but the center should still jiggle slightly—it'll firm up as it cools.

Don't open the oven door during baking or you'll risk cracking. If the top browns too quickly, tent it loosely with foil after 45 minutes. When you pull it out, the center should look slightly underdone—this is normal. Let it cool at room temperature for 1 hour, then refrigerate for at least 4 hours (overnight is best).

Run a knife around the edge of the cheesecake to loosen it from the pan. Unmold carefully and top with 1 cup whipped cream and 0.25 cup toasted coconut flakes. For extra zing, drizzle with a simple syrup made by simmering 0.25 cup sugar with 0.5 cup water for 3 minutes. Let it cool slightly before serving—this prevents the whipped cream from melting instantly.

Slice into wedges and serve chilled. Each bite should deliver that perfect balance of creamy cheesecake, tangy lime, and sweet coconut. The crust should be crisp but not crumbly, and the filling should be smooth with no cracks. Trust the process—this method works every time!

Health benefits of these flavors

Citrus Vitamin Boost

Key limes pack a nutritional punch with vitamin C—just 1 cup of juice provides 100% of your daily needs! This tangy citrus also delivers vitamin A for immune support and flavonoids that act as antioxidants. The zest adds extra limonene, a compound linked to reduced inflammation. 💛

Protein Powerhouse

While cheesecake isn't typically protein-rich, this version gets a boost from 32 oz cream cheese (about 20g protein per serving). The graham cracker crust adds 4g fiber per slice, helping balance the dessert's richness. For extra protein, consider topping with Greek yogurt whipped cream instead of regular whipped cream.

Calcium for Bones

Cream cheese provides 15% of your daily calcium per slice, supporting bone health. The key lime zest adds magnesium and potassium, which help regulate muscle function and blood pressure. This makes the dessert surprisingly beneficial when enjoyed as an occasional treat—just watch portions!

Low-Fat Option

For a lighter version, substitute 24 oz low-fat cream cheese (about 10% less fat) while keeping the same volume. The texture remains creamy, and you'll reduce calories by ~150 per serving. The key lime flavor still shines through, making it a guilt-free indulgence option.

Digestive Benefits

The cornstarch in the filling helps regulate blood sugar spikes, while the fiber-rich graham cracker crust supports digestive health. Key lime's natural enzymes may aid digestion—perfect for balancing this rich dessert. For extra digestive support, serve with a side of papaya or pineapple for their natural enzymes.

Energy Balance

Each slice contains about 350 calories but provides 5% of your daily iron and 8% of your daily zinc—important for energy metabolism. The combination of carbs, protein, and healthy fats creates a balanced energy boost. Pair with a small cup of black coffee to enhance alertness without jitters.

Frequently asked questions