1-First Step: Gather and prep. Measure 4 tablespoons butter, 10 ounces mini marshmallows, and 6 cups Lucky Charms cereal. Line baking sheets with parchment paper. This mise en place keeps things smooth, takes 5 minutes. Use room-temperature butter for even melting.

2-Second Step: Melt the base. In a large pot over low heat, melt butter for 1-2 minutes. Add marshmallows and stir constantly until smooth, about 5 minutes. Low heat prevents scorching. Vegan? Swap coconut oil here.

3-Third Step: Mix in cereal. Remove pot from heat. Pour in Lucky Charms cereal and fold gently with a rubber spatula until fully coated. Work fast as mixture thickens. Crush some cereal lightly for varied texture in your cereal cookies.

4-Fourth Step: Shape treats. Drop tablespoon-sized scoops onto prepared sheets, or press into greased 8×8-inch pan for bars. Use wet hands to avoid sticking. Space 2 inches apart if scooping.

5-Final Step: Cool and serve. Let sit 30 minutes at room temperature to set. Yields 20-24 easy Lucky Charms cookies. Store as noted below. Microwave marshmallows in 20-second bursts if no stovetop.

6- Cream 1/2 cup softened butter and 1/2 cup sugar until fluffy, 2 minutes.

7- Beat in 1 egg and 1 teaspoon vanilla.

8- Mix in 1 cup flour and 1/2 teaspoon baking soda.

9- Fold in 2 cups lightly crushed Lucky Charms, plus optional chips.

10- Chill dough 30 minutes. Preheat oven to 350°F.

11- Scoop dough onto parchment-lined sheets, 2 inches apart.

12- Bake 10-12 minutes until golden. Cool fully on racks.