Line an 8x8 baking pan with parchment paper and lightly grease paper.
Melt butter.
Mix melted butter and brown sugar together.
Add egg and vanilla to the sugar mixture.
Sift together flour, baking powder, baking soda, and salt.
Combine flour and sugar mixtures together until well blended.
Fold in M&M's.
Spread blondie mix into 8x8 pan and bake for 20 -25 minutes.
Allow to cool.
Remove from pan by lifting up the parchment paper.
Cut into squares.
Add candy eyes.
Serve and Enjoy!
These can be frozen in a ziploc bag or container.
Notes
The great thing about this recipe is that it's just like brownies but blond.Add in the Halloween colors and it's a fun treat.Make sure to spray the pan so it doesn't stick, and the rest is easy-peasy to do.