High-Protein PB&J Rice Krispie Bars

Featured in: Retro American Dishes

These elevated rice krispie bars combine the nostalgic flavors of peanut butter and jelly with a protein boost, delivering 7g of protein per bar. The crispy cereal base is bound with peanut butter and honey, then topped with a creamy protein-enriched peanut butter drizzle and swirls of vibrant jelly. Ready in just one hour with minimal cooking required, these bars make an ideal grab-and-go breakfast or satisfying post-workout snack that both kids and adults will love.

Updated on Sat, 31 Jan 2026 10:46:00 GMT
High-Protein PB&J Rice Krispie Bars with a thick peanut butter protein drizzle and vibrant strawberry jelly swirls on a plate. Save It
High-Protein PB&J Rice Krispie Bars with a thick peanut butter protein drizzle and vibrant strawberry jelly swirls on a plate. | zetluna.com

My neighbor handed me a container of these bars after her daughter's soccer game, calling them her secret weapon for busy mornings. One bite and I was hooked—crispy, chewy, with that familiar peanut butter and jelly combo I grew up loving, but somehow more satisfying. I asked for the recipe immediately, scribbling notes on a napkin while my kids devoured the rest in the backseat. The next weekend, I made my own batch, and they disappeared before they even finished chilling. Now I keep a pan in the fridge at all times.

I started making these on Sunday nights when I realized my mornings were chaos and my breakfast was usually cold coffee. The first time I packed one for my commute, I felt like I'd cracked some kind of code. My coworker spotted the purple jelly swirl through the container and asked if I'd been to some fancy bakery. I just smiled and said it was homemade, watching her eyes widen. These bars became my quiet rebellion against the idea that healthy snacks have to taste like cardboard.

Ingredients

  • Crisped rice cereal: The foundation of that addictive crunch, and any brand works as long as it's fresh and crispy, not stale.
  • Creamy peanut butter: Acts as both binder and flavor star, so use the kind you love eating straight from the jar.
  • Honey or maple syrup: Sweetens and helps everything stick together without being cloying, maple syrup makes it vegan if that matters to you.
  • Vanilla or unflavored protein powder: Sneaks in extra protein without changing the texture, just make sure it's a brand that doesn't taste chalky.
  • Fine sea salt: Balances the sweetness and makes the peanut butter flavor pop in a way that feels almost nostalgic.
  • Vanilla extract: A small splash that deepens all the flavors and makes your kitchen smell like a bakery.
  • Peanut butter for drizzle: Creates that glossy, professional looking top layer that makes these bars feel special.
  • Protein powder for drizzle: Thickens the drizzle and adds a little extra nutrition without being obvious.
  • Milk: Thins the peanut butter drizzle just enough to make it pourable, use whatever you have on hand.
  • Strawberry or grape jelly: Brings the classic PB and J vibe and adds gorgeous color, warming it makes swirling so much easier.

Instructions

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Prep your pan:
Line that 8x8 inch pan with parchment paper and let the edges hang over like little handles. This one step will save you so much frustration later when you're trying to cut clean bars.
Melt the base:
Combine peanut butter and honey in your saucepan over low heat, stirring gently until they melt into one smooth, glossy mixture. Keep the heat low or the peanut butter can seize up and get grainy.
Add the flavor:
Pull the pan off the heat and stir in vanilla, salt, and protein powder until everything disappears into the mixture. It'll look thick and rich, almost like frosting.
Fold in the cereal:
Dump in all the crisped rice and fold until every piece is coated in that peanut buttery goodness. Work quickly before it cools and gets hard to mix.
Press it down:
Scrape the mixture into your prepared pan and press firmly with the back of a spatula or your hands. The firmer you press, the better the bars hold together later.
Make the drizzle:
Whisk together the peanut butter, protein powder, and milk in a small bowl until it's smooth and thick but still drizzles off a spoon. Add milk a teaspoon at a time if it's too thick.
Drizzle and swirl:
Pour the peanut butter mixture over the base in zigzag lines, then drop spoonfuls of warmed jelly on top. Use a knife or skewer to swirl them together in loose, pretty patterns.
Chill and cut:
Slide the pan into the fridge for at least 40 minutes until everything is firm and set. Lift out using the parchment, then cut into 12 bars with a sharp knife, wiping it between cuts for clean edges.
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The morning my son grabbed two bars on his way to school and texted me later saying they were better than the stuff his friends bought at the gas station, I felt unreasonably proud. These aren't just snacks anymore, they're the thing my family reaches for when they need fuel that actually tastes good. I've watched my husband eat one before a morning run, my daughter pack one for a long rehearsal, and my own hands reach for one when I'm too busy to sit down for lunch. Something about knowing exactly what's inside them makes every bite feel like taking care of the people I love.

Storing and Keeping Them Fresh

I keep mine in an airtight container in the fridge, stacked between layers of parchment paper so they don't stick together. They last a full week that way, though they rarely make it past day four in my house. If you want to freeze them, wrap each bar individually in plastic wrap and toss them in a freezer bag for up to three months. I pull one out the night before and let it thaw in the fridge, or sometimes I eat them half frozen on really hot days when they taste like peanut butter ice cream bars.

Swapping Ingredients to Fit Your Needs

I've made these with almond butter when my niece visited and her peanut allergy meant I had to get creative, and honestly they were just as good. Sunflower seed butter works too if you need them completely nut free, though the color turns a little green from a natural reaction with baking soda in some cereals. Maple syrup instead of honey makes them vegan, and I've used raspberry jam, apricot preserves, even orange marmalade depending on what's in my fridge. The recipe is forgiving enough that you can make it work with what you have.

Making Them Look Bakery Perfect

The swirls are what make people think you spent way more time than you did, and the trick is not to overthink it. I drop five or six spoonfuls of jelly randomly across the top, then drag a knife through in long S shapes without lifting it too much. Sometimes I add a few extra drizzles of plain peanut butter for contrast. If you mess up, just smooth it out and try again, the jelly is forgiving and honestly even the ugly ones taste amazing.

  • Use a toothpick for really delicate, tight swirls if you want to get fancy
  • Chill for ten minutes between the drizzle and the swirl if your kitchen is warm and things are getting melty
  • Take a photo before you cut them because they look stunning whole and you'll want to show someone
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Homemade High-Protein PB&J Rice Krispie Bars showing chewy texture and a generous, glossy jelly topping, perfect for snacks. Save It
Homemade High-Protein PB&J Rice Krispie Bars showing chewy texture and a generous, glossy jelly topping, perfect for snacks. | zetluna.com

Every time I pull a pan of these from the fridge and see those swirls still looking perfect, I feel like I've managed to bottle up a little piece of comfort and hand it out in neat squares. They're proof that the best recipes are the ones that make you feel good about feeding yourself and the people you care about. Keep a batch around and you'll never regret it.

Common Questions About Recipes

Can I use a different nut butter instead of peanut butter?

Yes, almond butter, cashew butter, or sunflower seed butter work perfectly as substitutes. Each will bring its own unique flavor while maintaining the same creamy texture and binding properties.

How do I prevent the bars from being too sticky or too dry?

The key is achieving the right consistency when heating the peanut butter and honey mixture. It should be smooth and pourable but not runny. If the mixture seems too thick, add a tablespoon of milk; if too thin, add more cereal gradually.

What type of protein powder works best for this?

Vanilla or unflavored whey, casein, or plant-based protein powders all work well. Avoid heavily flavored varieties like chocolate, as they may clash with the peanut butter and jelly combination.

Can I make these bars ahead of time?

Absolutely. These bars store beautifully in an airtight container in the refrigerator for up to one week, making them perfect for meal prep. You can also freeze them for up to three months.

How can I make the jelly swirl more pronounced?

Warm the jelly slightly before drizzling to make it more fluid, then use a knife or skewer to create deliberate swirl patterns. Don't over-mix, as this can muddy the visual contrast between the peanut butter and jelly layers.

Are these bars suitable for children?

Yes, these bars are kid-friendly and provide a nutritious snack option. Just be mindful of any peanut allergies and use appropriate substitutes if needed. The added protein makes them more filling than traditional rice krispie treats.

High-Protein PB&J Rice Krispie Bars

Crispy bars with peanut butter drizzle, jelly swirls, and 7g protein per serving. Ready in 1 hour with simple pantry ingredients.

Prep Time
15 mins
Time to Cook
5 mins
Overall Time
20 mins
Authored by Clara

Recipe Type Retro American Dishes

Skill Level Required Easy

Cuisine Type American

Recipe Output 12 Number of Portions

Dietary Needs Veggie-Friendly

The Ingredients You'll Need

Base

01 4 cups crisped rice cereal
02 1 cup creamy peanut butter
03 1/2 cup honey or maple syrup
04 1/4 cup vanilla or unflavored protein powder
05 1/4 teaspoon fine sea salt
06 1 teaspoon vanilla extract

Toppings

01 1/3 cup peanut butter for drizzle
02 2 tablespoons vanilla or unflavored protein powder for drizzle
03 2 tablespoons milk (dairy or plant-based), as needed for consistency
04 1/3 cup strawberry or grape jelly, slightly warmed

Step-by-Step Instructions

Step 01

Prepare Baking Pan: Line an 8x8-inch baking pan with parchment paper, leaving overhang on all sides for easy removal.

Step 02

Combine Base Mixture: In a large saucepan, gently heat 1 cup peanut butter and honey over low heat, stirring constantly until smooth and fully combined. Remove from heat.

Step 03

Incorporate Dry Ingredients: Stir in vanilla extract, salt, and 1/4 cup protein powder until fully incorporated and no lumps remain.

Step 04

Coat Cereal: Add crisped rice cereal to the peanut butter mixture and stir until evenly coated throughout.

Step 05

Press Base Layer: Transfer mixture to prepared baking pan and press firmly and evenly into an even layer using a spatula.

Step 06

Prepare Protein Drizzle: In a small bowl, whisk together 1/3 cup peanut butter with 2 tablespoons protein powder and enough milk to create a thick, pourable consistency.

Step 07

Apply Peanut Butter Drizzle: Drizzle the peanut butter protein mixture evenly over the pressed base using a spoon or squeeze bottle.

Step 08

Swirl Jelly Topping: Warm jelly slightly to loosen consistency, then drop spoonfuls over the peanut butter drizzle. Use a knife or skewer to create decorative swirls.

Step 09

Chill Bars: Refrigerate for at least 40 minutes or until the mixture is completely set and firm to the touch.

Step 10

Cut and Serve: Lift mixture from pan using parchment overhang. Cut into 12 equal bars using a sharp knife, wiping blade between cuts for clean edges.

Tools You'll Need

  • 8x8-inch baking pan
  • Parchment paper
  • Large saucepan
  • Mixing bowls
  • Spatula
  • Knife or skewer

Allergy Information

Review each ingredient to identify allergens and consult an expert if needed.
  • Contains peanuts or tree nuts if using almond butter
  • Contains dairy if using cow's milk or certain protein powders
  • Contains gluten if using non-gluten-free crisped rice cereal or protein powder
  • Check all product labels including protein powder and cereal for hidden allergens

Nutritional Facts (Per Serving)

Keep in mind these details are for general guidance and shouldn't replace professional advice.
  • Caloric Content: 185
  • Fats: 8 grams
  • Carbohydrates: 22 grams
  • Proteins: 7 grams