Preheat your oven to 350°F / 175°C. Line an 8x8in pan with parchment paper or spray lightly with cooking spray.
To make the cheesecake topping, beat together the cream cheese, eggs, and sugar until creamy. Beat in the the vanilla and then slowly add in the Greek yogurt. Set this aside.
8 ounces (225 grams) cream cheese, 2 large eggs, 1/2 cup (100 grams) sugar, 1 1/2 teaspoons vanilla extract, 1 cup (237 ml) plain Greek yogurt
In a large bowl, whisk together the dry ingredients. In a small bowl, whisk together the wet ingredients. Add the wet ingredients to the dry and mix just until combined. Do not over mix!
1/2 cup (60 grams) whole wheat flour, 1/2 cup + 2 tablespoons (125 cup + 2 tablespoons ) unrefined sugar, 1/4 teaspoon salt, 1/4 teaspoon baking soda, 1/2 cup (57 grams) unsweetened Dutch-process cocoa powder, 1/2 cup (118 ml) plain Greek yogurt, 1 large egg, 3 tablespoons milk, 1 teaspoon vanilla extract, 1/4 cup (45 grams) chocolate chips
Spread the batter evenly into the pan and then pour on the cheesecake batter. Try to distribute it evenly.
You can either completely cover the cheesecake filling with strawberry sauce or jam, or you can cover the cheesecake with teaspoons of jam, leaving about a centimeter between each jam-blob, and then use a knife to create swirls.
1/4 - 1/2 cup (39 grams) berry jam
Bake for 20 minutes. Lower the heat to 325°F / 162°C and bake for another 20 minutes. Remove from the oven and let cool before cutting. Store covered in the refrigerator for up to 5 days.