Blue Rice Krispie Treats

Whether you want to make baby blue rice crispy treats or dark or royal blue treats, you can do so by simply adding blue food coloring to our Best Rice Krispie Treat recipe.

You can use a grocery store variety of liquid food coloring or gel icing colors. Either works fine.

The trick is knowing when to add the coloring and how much coloring to use to get the desired shade of blue.

Keep reading and I'll show you how to make a variety of blue Rice Krispie Treats.

Ingredients

• Rice Krispies Cereal - We always recommend using Kellogg's Rice Krispies as they will give your treats the best texture.
• butter - We recommend using salted European-style butter (with a higher butterfat content than American-made butter) for the very best flavor. See our taste test results for more information.
• marshmallows - We like to use Kraft Jet-Puffed Marshmallows because they produce perfectly chewy treats.
  Some store-brand marshmallows are very sticky once melted and are difficult to blend with the crisp rice cereal. If you do use them, you may need to add up to an extra cup of cereal.
  You can use mini or large marshmallows. See our marshmallow conversion chart for details about measuring marshmallows.
• blue food coloring - You can use grocery store-variety liquid food coloring like McCormick Food Coloring or you can use gel or paste icing coloring like AmeriColor or Wilton.

See the recipe card for quantities.

Equipment

• extra-large mixing bowl - You want to use a bowl that allows you room to mix the cereal and marshmallows together.
• medium-large (3 or 4-quart) saucepan - I like using a non-stick pan so the marshmallows don't stick too badly.
• 9x13-inch baking pan - If you use a non-stick pan and grease it with butter, the treats will easily slide out of the pan. If you use a glass pan or aluminum pan, you might want to line it with parchment paper or non-stick tin foil.
• silicone spatula - If you grease a silicone spatula (or Spoonula) with butter or baking spray, the cereal treat mixture won't stick. You can also use a wooden spoon but I'd grease it too.
• optional, zip-top bag or disposable pastry bag - Use this or a spoon to drizzle the white chocolate over your treats.

Instructions

Follow the directions below to make blue-colored cereal treats.

Cut the butter into thin slices and place them in a medium-large saucepan. Set it over LOW heat.

Allow the butter to begin to melt then pour marshmallows over the top.

Stir often until about 75% of the marshmallows have melted. I like using mini marshmallows as they melt more quickly than large ones.

Remove the pan from the heat at this point so the marshmallows don't get too hot. You do not want your marshmallows to get too hot.

Stir until the marshmallows completely melt.

Add a few drops of blue food coloring and stir until blended.

If the color is not bright enough for you, add a few more drops of coloring. If you like this color, stop now and mix this into your cereal.

Add more color if desired. You want this to look brighter than the final color as the cereal will dull this color once mixed in.

Tips

It's always best to add a few drops of food coloring at a time to the marshmallows. You can always add more but you cannot lighten the color if it gets too bright. For the baby blue Rice Krispie Treats, use 3-6 drops of liquid blue coloring or 6-8 drops of baby blue gel coloring.

Just note that Rice Krispies Cereal has a slight yellow color which can affect the final color of your treats. You'll notice the blue cereal treats look slightly green (yellow + blue = green). If you prefer your treats to have a truer blue color, add a small drop of purple to the marshmallows.

Variations

Once you've made a batch of blue rice crispy treats, you can use them to make something fun like these Rice Krispie Treat Easter Eggs.

If you prefer, you can always make traditional Rice Krispie Treats and then add frosting on top. I used a variety of blue, white, and black frosting to make these cool Galaxy Rice Krispie Treats.