Stuffed Peanut Butter Marshmallow Cookie

A nostalgic prairie classic—turned cookie.
If you're from Northwestern Ontario or Manitoba, chances are you've had a Peanut Butter Marshmallow Square at every potluck, shower, or holiday table. It's a staple recipe around here—and after dreaming of cookie-fying it for years, that vision has finally come to life!

These ultra-soft cookies are stuffed with a gooey square of the iconic treat and topped with a swirl of the same butterscotch-marshmallow goodness. It’s sweet, salty, chewy, and ridiculously addictive. A true hometown classic with a Baked by the Lake twist.

Each digital recipe includes:

• Clear step-by-step instructions
• Detailed ingredient measurements (imperial and metric)
• Helpful baking tips for guaranteed success