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The secret to these St. Patrick's Day Rice Krispies treats is increasing your ratio of marshmallows to cereal for a chewy, pull-apart snack guaranteed to satisfy kids and adults alike. Want to know how to change the color of Rice Krispies treats? A couple drops of gel food coloring make these vibrant green. You can skip the dye if you prefer or try Color Kitchen’s line of natural food colors.

Dawn Perry


Credit: Dawn Perry

Recipe Summary test

15 mins
30 mins
Makes 12 (with edible scraps)


Ingredient Checklist


Instructions Checklist
  • Combine marshmallows, butter, vanilla, and salt in a small saucepan over medium heat. Cook, stirring often, until melted and smooth. Remove from heat.

  • Lightly coat a large mixing bowl, a 9-inch baking dish, and a spatula with nonstick spray. (This helps prevent the treats from sticking.) Transfer marshmallow mixture to prepared bowl and add a few drops of food coloring, if using. Add cereal and fold until evenly coated in the marshmallow mixture. Transfer to prepared baking dish, pressing evenly into bottom of the dish. Let cool completely.

  • Turn treats out onto a work surface. Spray a shamrock-shaped cookie cutter with nonstick spray. Punch out shamrocks from treats or cut into squares. Shamrock Treats will keep, tightly wrapped at room temperature, for about 3 days.