Starbucks Rice Crispy Treats Copycat Recipe

These Starbucks rice crispy treats are the thick, marshmallow-heavy bars you see wrapped in plastic next to the register, and this copycat gets them right at home for a fraction of the cost. If you’ve ever grabbed one with your afternoon coffee and thought “I could make this,” you’re right, and it takes about 20 minutes.

They come together with five ingredients and no oven, which makes them a solid option for any night you want something sweet without a lot of cleanup.

Why I Love This Recipe

The ratio here is what does it. More marshmallow than a standard crispy treat recipe means these bars are soft and sticky all the way through, not dry or crumbling at the edges.

Butter browned for about 2 minutes before the marshmallows go in adds a subtle nuttiness that makes the flavor a little more interesting than the back-of-the-box version.

I keep coming back to this one because it’s consistent. Every batch comes out soft, thick, and easy to cut cleanly.

Recipe Ingredients

• 4 tbsp unsalted butter – Browned for flavor; salted butter works but skip the added salt
• 1 tsp fine sea salt – Balances the sweetness; reduce to 1/2 tsp if using salted butter
• 16 oz mini marshmallows – Mini melt faster and more evenly than large; reserve 1 cup for the end
• 6 cups puffed rice cereal – The standard brand works; avoid store brands that run stale
• 1 tsp pure vanilla extract – Rounds out the sweetness without being obvious

Variations / Substitutions

• Vegan butter – Works one-for-one; the bars will be slightly less rich but still hold together well.
• Vegan marshmallows – Dandies brand melts cleanly and gives you the same sticky pull.
• Brown butter – Cook the 4 tbsp butter an extra 2 minutes until amber and nutty for a noticeably deeper flavor.
• Fruity cereal – Swap up to 2 cups of the puffed rice cereal for a fruit-flavored puffed cereal to add color and a faint citrus note.
• Chocolate drizzle – Melt 2 oz of semi-sweet chocolate and drizzle it over the set bars for a slightly bitter contrast to the sweet base.
• Flaky salt finish – Scatter a pinch of flaky sea salt on top before the bars set for a salty-sweet finish.

If you like no-bake bars, you might also enjoy a Starbucks Cake Pop Copycat Recipe.

How To Make Starbucks Rice Crispy Treats

Step 1: Brown the Butter

Set a large pot or Dutch oven over medium heat and add the 4 tbsp unsalted butter. Let it melt, then keep cooking it, swirling the pan every 30 seconds or so, for about 2 minutes total until the milk solids at the bottom turn amber and it smells faintly nutty. Add the 1 tsp fine sea salt now.

Watch the color carefully here. It goes from golden to dark quickly, so pull the pot off the heat the moment you see the bottom turning brown. The residual heat will carry it the rest of the way.

Step 2: Melt the Marshmallows

Add 15 oz of the mini marshmallows (holding back about 1 cup for later) to the browned butter in the pot over low heat. Stir constantly with a silicone spatula for 3 to 4 minutes until the marshmallows are fully melted and the mixture looks smooth and glossy. Stir in the 1 tsp vanilla extract.

Keeping the heat at low is important. High heat makes marshmallow mix seize up and go grainy. If the mixture starts looking stringy or lumpy, pull the pot off the burner entirely and keep stirring off the heat.

Step 3: Fold in the Cereal and Reserved Marshmallows

Pull the pot off the heat entirely. Add the 6 cups puffed rice cereal all at once, then scatter in the reserved 1 cup mini marshmallows. Fold everything together with your spatula, using big, slow strokes, until the cereal is coated and the reserved marshmallows are just barely softened but still visible as distinct pockets, about 30 seconds of folding.

The reserved marshmallows are what give these bars that soft, stretchy interior the Starbucks version is known for. Don’t overmix or they’ll melt completely into the base.

Step 4: Press the Bars into the Pan

Line a 9×13 inch baking dish with parchment paper and lightly coat it with cooking spray. Transfer the cereal mixture into the pan. Press it down into an even layer using lightly greased hands or the bottom of a greased measuring cup, aiming for a thickness of about 1.5 inches. Press firmly enough to compact the bars, but don’t pack them so hard they turn dense.

Let the bars sit at room temperature for 45 minutes to 1 hour, until fully set and cool to the touch.

Step 5: Slice and Serve

Lift the slab out of the pan using the parchment paper and set it on a cutting board. Cut it into 12 equal bars with a sharp knife, wiping the blade clean between cuts for neat edges. Arrange the bars cut-side up on a serving plate or board, showing off the thick, marshmallow-streaked interior.

Recipe Tips

• Use fresh marshmallows. A bag that’s been open for a week will melt unevenly and make the bars harder than they should be. A fresh, sealed bag makes a real difference.
• Grease everything. The mixture is aggressively sticky. Grease your spatula, your hands, and your pan before the cereal goes in, or you’ll spend ten minutes fighting it.
• Don’t rush the set time. Cutting before the bars are fully cool means ragged edges and bars that fall apart. Forty-five minutes at room temperature is the minimum.
• The thickness matters. Starbucks bars are noticeably thicker than homemade versions most people make. A 9×13 pan gives you that height. Don’t spread them into a larger pan or they’ll come out thin and less satisfying.

Cook times by pan size:

How To Store

• Refrigerate – Store bars in an airtight container, layered with parchment between bars to prevent sticking, for up to 5 days. Cold bars firm up; let them sit at room temperature for 10 minutes before eating.
• Serve Cold – Straight from the fridge they’re chewier and hold their shape better for packed lunches.

Frequently Asked Questions

Can I make these a day ahead?

Yes. Make the full batch, let them set completely, then store them in an airtight container at room temperature overnight. They’ll be just as soft the next day.

Why are my bars hard and dry?

The most common cause is too much heat when melting the marshmallows. High heat drives out moisture and leaves you with a stiff, crumbly bar. Keep it on low and pull the pot off the burner before it looks fully done.

Can I double this recipe?

Yes, but melt the marshmallows in two separate batches rather than crowding one pot. A single large pot of doubled marshmallow mixture is hard to stir evenly and the bottom can scorch before everything melts.

Can I use large marshmallows instead of mini?

You can. Use the same 16 oz by weight. Large marshmallows take a minute or two longer to fully melt, so add an extra minute of stirring time on low heat and watch the texture closely.

Starbucks Rice Crispy Treats Recipe

Print Recipe Pin Recipe

Prep Time 10 minutes mins

Cook Time 10 minutes mins

Total Time 20 minutes mins

Servings: 12 servings

Ingredients Method Notes

Ingredients

  

• 4 tbsp unsalted butter
• 1 tsp fine sea salt
• 16 oz mini marshmallows, divided
• 6 cups puffed rice cereal
• 1 tsp pure vanilla extract

Method

 

1. Melt the 4 tbsp unsalted butter in a large pot over medium heat, then cook for about 2 minutes, swirling often, until the milk solids turn amber. Stir in the 1 tsp fine sea salt.
2. Add 15 oz of the mini marshmallows to the pot and reduce heat to low. Stir constantly for 3 to 4 minutes until fully melted and smooth, then stir in the 1 tsp vanilla extract.
3. Remove the pot from the heat. Fold in the 6 cups puffed rice cereal and the reserved 1 cup mini marshmallows with big, slow strokes until the cereal is coated and the reserved marshmallows are just softened, about 30 seconds.
4. Press the mixture into a parchment-lined, greased 9×13 inch baking dish to about 1.5 inches thick using greased hands or a measuring cup. Let set at room temperature for 45 minutes to 1 hour.
5. Lift the slab out with the parchment, slice into 12 bars on a cutting board, and arrange cut-side up on a serving plate.

Notes

These bars are best within the first 2 days when the marshmallow pockets inside are still soft and distinct. If your kitchen runs warm, pop the pan in the fridge for the last 20 minutes of the set time to help them hold their shape when you cut them. A thin coating of cooking spray on your knife makes slicing much cleaner.