To make Christmas rice krispie treats, you will need the following ingredients: 3 tablespoons of butter, 1 bag (10 ounces) of marshmallows, 6 cups of Rice Krispies cereal, red and green food coloring, and sprinkles. Here are the steps to make the treats: 1. Melt the butter in a large pot over low heat. 2. Add the marshmallows and stir until completely melted. 3. Remove from heat and stir in the red and green food coloring to create a festive color. 4. Add the Rice Krispies cereal and stir until completely coated.