Preheat your oven to 350°F (175°C). This ensures that your brownies bake evenly and turn out perfectly.
Grease your brownie bite pan or mini muffin tin with a bit of cooking spray or line with parchment paper for easy removal.
In a medium bowl, whisk together the all-purpose flour, cocoa powder, baking powder, and kosher salt. Set aside.
In a large bowl, beat the softened salted butter and granulated sugar together until light and fluffy, about 2-3 minutes.
Add the eggs, one at a time, mixing well after each addition. Then, stir in the vanilla extract until combined.
Gradually add the dry ingredients to the wet mixture, mixing until just combined. Be careful not to overmix to keep your brownies fudgy.
In a microwave-safe bowl, melt the 5 ounces of chocolate wafers in 30-second intervals, stirring in between, until smooth. Allow it to cool slightly before adding to the brownie batter.
Gently fold the melted chocolate into the brownie batter until fully incorporated.
Spoon the brownie batter into the prepared pan, filling each cavity about 2/3 full to allow room for rising.
Bake in the preheated oven for 10-12 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs. Let them cool in the pan for a few minutes before transferring to a wire rack to cool completely.
Once cooled, melt additional melting wafers in your choice of colors. Drizzle them over the brownie bites and top with Valentine sprinkles for that festive touch.