01 -
Preheat oven to 350°F. Line a 9x13 inch pan with parchment paper, leaving overhang on long sides. Spray short sides with baking spray for easy cleanup.
02 -
In a bowl, whisk together flour, baking soda, cinnamon, and salt. In a separate bowl, cream butter, brown sugar, and granulated sugar until light and fluffy (2–3 minutes). Add eggs one at a time, mixing thoroughly after each, then stir in vanilla. Gradually mix in dry ingredients until just combined, followed by oats.
03 -
Press half of the cookie dough into the prepared pan, ensuring an even layer using slightly damp hands or a measuring cup. Reserve the remaining dough for the topping.
04 -
Beat cream cheese and sugar until smooth. Add the egg yolk first, mix, then the egg white. Fold in melted white chocolate until smooth and well-combined.
05 -
Spread the cheesecake mixture evenly over the cookie base. Top with chopped strawberries and blueberries. Crumble the remaining dough over the top to create a streusel-like topping.
06 -
Bake for 25–30 minutes until the top is golden brown. The center may jiggle slightly but should appear set. Cool on a rack at room temperature, then refrigerate until firm before slicing.