These classic no-bake peanut butter Rice Krispie treats are chewy, crunchy, and full of nutty flavor — perfect for snacks, parties, or quick desserts.
6 cups Rice Krispies cereal
10 oz mini marshmallows (about 5½ cups)
¼ cup unsalted butter
½ cup creamy peanut butter
1 tsp vanilla extract (optional)
Grease a 9×13-inch pan or line with parchment.
In a large pot, melt butter over low heat. Add marshmallows and stir until melted.
Remove from heat and stir in peanut butter and vanilla.
Quickly fold in the cereal until fully coated.
Press into pan gently with greased hands or spatula.
Let cool 30 minutes, then cut into bars.
Add chocolate drizzle or stir in chopped peanuts for extra flavor. Store in an airtight container for up to 5 days.