Creating Raspberry Cheesecake Stuffed Brownie Hearts is a delightful process. Follow these simple steps to make your own:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour a heart-shaped brownie pan or line it with parchment paper.
2. Make the Brownie Batter: In a large bowl, mix the melted butter and granulated sugar until well combined. Add eggs one at a time, mixing well after each addition. Stir in vanilla extract.
3. Combine Dry Ingredients: In another bowl, sift together the flour, cocoa powder, salt, and baking powder. Gradually add the dry mixture to the wet mixture, stirring until just combined.
4. Prepare the Cheesecake Filling: In a separate bowl, beat the softened cream cheese and granulated sugar until smooth. Add the egg and vanilla extract, mixing until well blended. Gently fold in the raspberries.
5. Layer the Brownie Batter: Pour half of the brownie batter into the prepared pan, spreading it evenly.
6. Add Cheesecake Filling: Spoon the cheesecake filling over the brownie layer, spreading it evenly but leaving a small border around the edges.
7. Top with Remaining Brownie Batter: Carefully dollop the remaining brownie batter over the cheesecake filling. Use a spatula to gently spread it without disturbing the filling.
8. Bake: Place in the preheated oven and bake for 25-30 minutes, or until a toothpick inserted into the brownie portion comes out clean.
9. Cool: Remove from the oven and let it cool in the pan for about 30 minutes. Then, transfer to a wire rack to cool completely.
10. Cut into Hearts: Once cooled, use a heart-shaped cookie cutter to cut out individual brownie hearts.