Preheat oven to 350 degrees F and prepare an 8x8 inch baking dish by lining with parchment paper or spraying with cooking spray.
In a large mixing bowl, using an electric mixture, cream together butter and sugar beating until light & fluffy.
Add in eggs and vanilla and beat until well combined (about another minute).
In a sifter, combine cocoa powder, salt and baking powder. Sift into a separate smaller mixing bowl, then add in almond flour and whisk to incorporate.
Add dry ingredients to wet ingredients and gently mix using a rubber spatula until just combined.
Fold in white chocolate chips & crushed peppermint candies and mix until well-distributed.
Add batter into the prepared baking dish and bake for 30-40 minutes or until a knife inserted in the middle comes out clean (start checking after 20 minutes since every oven is different!).
Once baked, remove from the oven and place on a cooling rack. Allow to cool completely before turning out, slicing and topping with powdered sugar and crushed peppermint.