Melt butter with marshmallows in a large non-stick pot. Add 1 tsp mint extract. Stir frequently with a spatula, until everything is melted & smooth. Remove from heat. *Heat just long enough to melt everything, you want the mixture to be warm, not hot.

Add rice cereal & mix lightly.

Add ¾ cup mint & semi-sweet chocolate chips, each. Fold in gently. *This is why you want the marshmallow mixture to be warm & not hot, or your chips will melt.

Spread mixture into a greased 13x9" pan. Pat down with spatula.

In a small bowl, microwave ⅓ cup mint chips on HALF POWER for 30-60 seconds. Stirring after 30 seconds. Heat until melted. Spoon mixture into a plastic sandwich bag, with the corner tip cut off. Drizzle over the top of rice krispies. Repeat with ¼ cup semi-sweet chocolate chips.

*Optional: Sprinkle green or red sugar crystals over the top of warm chocolate drizzle for extra fancy rice krispies.