Homemade Rice Krispie Treat Bars
Classic no-bake bars made with toasted marshmallows and crispy rice cereal for a nostalgic and chewy snack. This american-inspired desserts ready in about 20 minutes layers (45g) unsalted butter, (280g) mini marshmallows, (180g) crispy rice cereal into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 150 calories and feeds 12, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 3 tbsp (45g) unsalted butter
- 10 oz (280g) mini marshmallows
- 6 cups (180g) crispy rice cereal
Instructions
- Step 1: Grease a 9x13-inch baking pan lightly with butter and set aside.
- Step 2: In a large pot over low heat, melt 3 tablespoons (45g) unsalted butter until fully melted and sizzling.
- Step 3: Add 10 ounces (280g) mini marshmallows to the pot and stir continuously for 3-4 minutes until completely melted and smooth.
- Step 4: Remove the pot from heat and immediately stir in 6 cups (180g) crispy rice cereal until every piece is coated with the marshmallow mixture.
- Step 5: Transfer the mixture to the prepared pan and press firmly and evenly with a buttered spatula or wax paper to compact the bars.
- Step 6: Allow to cool at room temperature for at least 30 minutes before cutting into 12 squares.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Homemade Rice Krispie Treat Bars take to make?
Total time is about 20 minutes (10 min prep + 10 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.
How do I store leftover Homemade Rice Krispie Treat Bars?
Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.
Can I substitute ingredients in Homemade Rice Krispie Treat Bars?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Homemade Rice Krispie Treat Bars for a different number of people?
The recipe is written for 12 servings. Multiply each ingredient by (your serving target / 12). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Homemade Rice Krispie Treat Bars?
American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
