High-Protein PB&J Rice Krispie Bars (Printable Version)

Nostalgic crispy cereal bars with protein-rich peanut butter drizzle and fruity jelly swirls.

# What You’ll Need:

→ Cereal Base

01 - 4 cups crisp rice cereal
02 - 1 1/2 cups mini marshmallows
03 - 1/4 cup unsalted butter
04 - 1/4 cup creamy peanut butter
05 - 1/2 teaspoon vanilla extract
06 - Pinch of salt

→ Protein Drizzle

07 - 1/2 cup vanilla protein powder
08 - 1/3 cup creamy peanut butter
09 - 2 tablespoons unsweetened almond milk
10 - 2 tablespoons maple syrup or honey

→ Jelly Swirl

11 - 1/3 cup fruit jelly or jam

# Step-by-Step Guide:

01 - Line an 8x8-inch square baking pan with parchment paper, ensuring overhang on edges for easy removal.
02 - In a large saucepan over low heat, combine butter and peanut butter. Add marshmallows and stir continuously until completely melted and smooth. Remove from heat and incorporate vanilla extract and salt.
03 - Add crisp rice cereal to the melted mixture and fold gently until all cereal is evenly coated.
04 - Transfer cereal mixture to prepared pan and press firmly and evenly using a spatula to create uniform density.
05 - In a small bowl, whisk together protein powder, peanut butter, almond milk, and maple syrup until smooth and pourable. Adjust milk quantity as needed for desired consistency.
06 - Drizzle protein mixture evenly across the entire cereal layer in a thin stream.
07 - Distribute small dollops of jelly across the protein drizzle. Using a knife or skewer, gently drag through both layers to create an aesthetic marbled pattern.
08 - Refrigerate for a minimum of 1 hour until completely set and firm to touch.
09 - Remove bars from pan using parchment overhang as handles. Cut into 12 equal squares using a sharp knife with clean strokes between cuts.

# Expert Tips:

01 -
  • They taste like dessert but pack 7 grams of protein per bar, so you can eat them guilt-free.
  • The peanut butter and jelly combo hits different when it's melted and swirled through crispy rice, way better than the sandwich version we grew up with.
  • Zero baking required, just melting and swirling, which means even pre-dawn mornings feel manageable.
02 -
  • The protein powder drizzle will look thin when you pour it, but it sets firm in the refrigerator—don't panic and add more powder or you'll end up with something grainy and unpleasant.
  • If your jelly is too cold from the fridge, it won't swirl properly; let it sit out for five minutes first so it's slightly looser and easier to marble into the protein layer.
03 -
  • If your peanut butter is the separated kind with oil on top, stir it back in before measuring—it'll blend smoother into both the base and the drizzle.
  • The parchment paper overhang is non-negotiable; without it you'll be chiseling bars out like you're on an archaeological dig.
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