01 - Preheat oven to 350°F. Grease a 24-cup mini muffin pan or line with mini paper liners.
02 - Whisk melted butter with granulated and brown sugars in a medium bowl until smooth.
03 - Add eggs, vanilla extract, and peppermint extract. Whisk until fully combined.
04 - Sift flour, cocoa powder, and salt into wet mixture. Stir gently until just combined, avoiding overmixing.
05 - Carefully fold semisweet chocolate chips into the batter.
06 - Divide batter evenly among mini muffin cups, filling each about three-quarters full.
07 - Bake 12 to 15 minutes until a toothpick inserted in the center comes out with moist crumbs. Avoid overbaking.
08 - Allow brownie bites to cool in the pan for 10 minutes, then transfer to wire rack to cool completely.
09 - Drizzle melted white chocolate over cooled bites and sprinkle with crushed peppermint candies. Let chocolate set before serving.