Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
If using fresh strawberries, rinse and pat them dry. Hull and halve large berries. If using frozen, no need to thaw them.
2 Pounds whole strawberry
In a large bowl, toss strawberries with granulated sugar, a pinch of salt, and lemon juice until coated.
¼ cup granulated sugar, Pinch of salt, Juice of a lemon
Spread strawberries in a single layer on the prepared sheet. Avoid overcrowding to ensure even roasting.
Roast for 25–30 minutes, stirring halfway through, until softened, juicy, and caramelized at the edges. Set aside to cool.
Graham Cracker Crust:
Preheat your oven to 350°F (175°C). Spray a 9-inch springform pan with cooking spray and wrap the bottom tightly with aluminum foil to prevent water seepage.
2 cups fine graham cracker crumbs, ¼ cup granulated sugar, ½ cup unsalted butter melted
In a medium bowl, mix graham cracker crumbs and sugar. Add melted butter and stir until combined.
Press the mixture firmly into the pan's bottom and halfway up the sides. Use a flat-bottomed glass or your hands for evenness.
Bake for 10 minutes, then set aside to cool.
Streusel Topping:
In a medium bowl, combine brown sugar, flour, cinnamon, and salt.
½ cup light brown sugar, ⅔ cup all purpose flour, 1 teaspoon ground cinnamon, pinch of salt
Use a pastry cutter or your fingers to work in the cold butter until the mixture forms coarse crumbs.
6 Tablespoons unsalted butter cold and cubed into pea size shape
Refrigerate the streusel while preparing the cheesecake filling.
Cheesecake Filling:
Preheat your oven to 325°F (163°C). Prepare a water bath by filling a large roasting pan with water until halfway full. Set aside.
In a large bowl or stand mixer fitted with the paddle attachment, beat cream cheese on medium speed until smooth and creamy.
32 ounces full-fat cream cheese 4 blocks room temperature
Gradually add sugar on low speed until fully incorporated. Scrape down the sides of the bowl.
¾ cup granulated sugar
Add the egg yolk and eggs, mixing just until combined. Scrape down the bowl again.
1 large egg yolk room temperature, 2 large whole eggs room temperature
Gently fold in sour cream, vanilla, and cornstarch with a rubber spatula until smooth, avoiding overmixing to reduce air bubbles.
1 teaspoon vanilla extract, ¼ cup sour cream, ¼ cup corn starch
Fold in ½ cup roasted strawberries, creating swirls in the batter.
Roasted strawberries
Assembly:
Pour half of the cheesecake batter into the pre-baked crust. Spread evenly.
Scatter half of the roasted strawberries on top of the batter.
Add the remaining cheesecake batter, spreading evenly. Top with the remaining strawberries.
Sprinkle the streusel evenly over the strawberries.
Baking:
Place the cheesecake in the water bath and bake for 70–80 minutes, or until the center is set but still slightly jiggly.
If the top browns too quickly, cover loosely with aluminum foil without removing the cheesecake from the oven.
Once baked, let the cheesecake cool to room temperature, then refrigerate for at least 4 hours or overnight.