# Ingredient List:
→ Crust
01 - 7 oz Maria cookies or digestive biscuits, crushed into fine crumbs
02 - 2.8 oz unsalted butter, melted
03 - 2 tablespoons granulated sugar
→ Cheesecake Filling
04 - 21 oz cream cheese, softened to room temperature
05 - 7 oz granulated sugar
06 - 7 fl oz sour cream
07 - 3 large eggs
08 - 1 teaspoon pure vanilla extract
09 - Zest of 1 lime, optional
→ Guava Swirl
10 - 7 oz guava marmalade or paste
11 - 2 tablespoons water for thinning if needed
# Step-by-Step Instructions:
01 - Preheat oven to 320°F. Line a 9-inch springform pan with parchment paper and lightly grease the sides with butter or cooking spray.
02 - Crush Maria cookies into fine crumbs using a food processor or place in a sealed bag and crush with a rolling pin. Combine crumbs with melted butter and 2 tablespoons sugar, stirring until evenly moistened.
03 - Press the crumb mixture firmly and evenly into the base of the prepared pan. Bake for 10 minutes until lightly set, then remove and allow to cool slightly.
04 - In a large mixing bowl, beat softened cream cheese and sugar with an electric mixer until smooth, creamy, and light in texture, approximately 2-3 minutes.
05 - Add sour cream to the cream cheese mixture and blend until fully combined. Add eggs one at a time, beating on low speed just until incorporated after each addition to avoid overmixing.
06 - Stir in vanilla extract and lime zest if using. Mix gently until the filling is smooth and uniform.
07 - Pour the prepared cream cheese filling over the cooled crust, smoothing the top surface with a spatula.
08 - In a small saucepan over low heat, gently warm the guava marmalade with 2 tablespoons water, stirring occasionally until it reaches a pourable consistency. If using guava paste, mash and stir until smooth.
09 - Drop spoonfuls of the warmed guava mixture evenly over the cheesecake batter. Using a knife or skewer, gently swirl the guava through the filling to create a marbled pattern, being careful not to overwork.
10 - Bake for 50-55 minutes until the edges are set but the center still shows slight movement when the pan is gently shaken.
11 - Turn off the oven, crack the door open slightly, and allow the cheesecake to cool in the oven for 1 hour to prevent cracking from sudden temperature change.
12 - Remove from oven and cool completely at room temperature. Refrigerate for at least 3 hours or preferably overnight before removing from the springform pan.