Ingredients:

  • 1/2 cup (115g) unsalted butter, melted
  • 1 cup (125g) all-purpose flour
  • 1/4 cup (50g) granulated sugar
  • 1/4 tsp (1.5g) salt
  • 16 oz (450g) cream cheese, softened to room temperature
  • 1/2 cup (100g) granulated sugar
  • 1 large (50g) egg, room temperature
  • 1 tsp (5ml) vanilla extract
  • 1/4 cup (60g) sour cream, room temperature
  • 1/3 cup (100g) blackberry preserves

Instructions:

  1. Preheat oven to 325°F (160°C). Grease an 8x8 inch square baking pan and line it with parchment paper, leaving an overhang on the sides.
  2. Stir together melted butter, flour, sugar, and salt until a crumbly dough forms.
  3. Press the dough firmly and evenly into the bottom of the prepared pan.
  4. Bake the crust for 12–15 minutes until edges are barely golden; remove and let cool slightly.
  5. In a large bowl, beat softened cream cheese and sugar on medium-high speed until smooth and aerated.
  6. Add egg and vanilla extract, mixing on low speed just until combined.
  7. Fold in the sour cream with a spatula until the mixture is uniform and glossy.
  8. Pour the filling over the pre-baked shortbread crust and smooth the top with a spatula.
  9. Drop small spoonfuls of blackberry preserves across the top of the cheesecake layer.
  10. Using a toothpick or knife, gently drag the preserves through the batter in a figure-eight motion to create a marbled effect.
  11. Bake for 30–35 minutes until edges are set but the center has a slight gelatinous jiggle.
  12. Remove from oven and cool completely in the pan before refrigerating for at least 3 hours.