Ingredients
Equipment
Method

- Step 1: Line a 9x13-inch baking dish with parchment paper, leaving overhangs for easy removal. Lightly spray with non-stick spray. This ensures your bars lift out cleanly without crumbling at the edges.
- Step 2: In a large microwave-safe bowl, melt the 3 cups milk chocolate chips in 30-second intervals, stirring vigorously after each until completely smooth and glossy, about 1-2 minutes total. Use a double boiler on stovetop if preferred for even gentler melting—stop when it ribbons smoothly off the spoon.
- Step 3: Gently fold the thawed whipped topping into the melted chocolate with a spatula until fully combined into a light, uniform batter with no white streaks remaining. The mixture will thicken slightly and become airy.
- Step 4: Sprinkle in the 5 cups mini marshmallows and fold delicately just until evenly distributed—avoid overmixing to keep them intact for chewiness.
- Step 5: Pour the mixture into the prepared pan, spread evenly, and press down firmly with lightly greased hands or a spatula for a compact layer about 1-inch thick. Refrigerate uncovered for at least 2 hours or freeze for 1 hour until firm to the touch.
- Step 6: Lift out using parchment overhangs, place on a cutting board, and slice into 24 bars with a sharp, warmed knife wiped clean between cuts for neat edges.
Nutrition
Calories: 290 | Carbohydrates: 40 | Protein: 3 | Fat: 12 | Fiber: 1 | Sugar: 32
Notes
STORAGE: Store in airtight container in fridge up to 1 week or freezer up to 2 months. Thaw in fridge; room temp 2 days max.
MAKE AHEAD: Prepare and chill up to 24 hours before slicing.
SUBSTITUTIONS: Dark chocolate chips for antioxidants; lite Cool Whip or homemade whipped cream (2 cups heavy cream + powdered sugar); vegan marshmallows and dairy-free chips.
PRO TIPS: Melt chocolate low-and-slow to avoid seizing; press firmly for structure; chill pan first for quicker set.
SERVING SUGGESTIONS: Serve chilled with milk; crumble over ice cream; box for gifts. Pairs with coffee or as s'mores filler.
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