Disappearing Marshmallow Bars

Prep: 15 min Cook: 20 min Serves: 12 Cuisine: American

Deliciously gooey marshmallow bars with chocolate and butterscotch flavors, perfect for sharing at parties or as a sweet treat for family gatherings.

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Ingredients

  • 1 c. butterscotch chips
  • 1/2 c. butter
  • 1 1/2 c. flour
  • 2/3 c. brown sugar
  • 2 tsp. baking powder
  • 1/2 tsp. salt
  • 1 tsp. vanilla
  • 2 eggs
  • 2 c. mini marshmallows
  • 2 c. chocolate chips
  • 1/2 c. chopped nuts

Instructions

  1. Melt butterscotch chips and butter in a 3-quart saucepan over medium heat, stirring constantly.
  2. Remove from heat and cool to lukewarm.
  3. Add flour, brown sugar, baking powder, salt, vanilla, and eggs to the mixture.
  4. Mix well until combined.
  5. Add the mini marshmallows, chocolate chips, and chopped nuts; mix with 5 strokes.
  6. Spread the mixture in a greased 9 x 13-inch pan.
  7. Bake at 350°F (175°C) for 20 to 25 minutes.
  8. Do not overbake.

Tips & Substitutions

For a richer flavor, consider substituting half of the butterscotch chips with peanut butter chips. If you want a gluten-free option, use a 1:1 gluten-free baking flour instead of regular flour. Keep an eye on the baking time, as oven temperatures can vary; you want a golden brown top without overbaking. Adding a sprinkle of sea salt on top before baking enhances the flavor further.

Serving Suggestions

These Disappearing Marshmallow Bars are perfect for a sweet treat at parties or as an after-school snack. Serve them with a scoop of vanilla ice cream for an indulgent dessert, or pair them with a cup of coffee or tea for a cozy afternoon break. They also make a delightful addition to dessert trays alongside other treats like Grandma'S Fruit Snaps.

Storage & Reheating

Store leftover bars in an airtight container at room temperature for up to 5 days. For longer storage, you can refrigerate them for up to 2 weeks. To reheat, warm individual pieces in the microwave for about 10-15 seconds or until slightly warm. This will help maintain their soft, gooey texture.

Nutrition & Diet Analysis (per serving)

Each serving of Disappearing Marshmallow Bars contains roughly 800 calories, with 9g protein, 64g carbohydrates, and 56g fat. It is an excellent source of iron (35% of the Daily Value), and a good source of calcium and protein. Note that it is relatively high in sodium, at 956mg per serving (42% of the Daily Value).

800 kcal 40% DV
Protein Fat Carbs

Macronutrients

Protein 8.5g 17% DV
Total Fat 56.3g 72% DV
Carbs 63.5g 23% DV
Fiber 3.3g 12% DV
Sugar 34.6g 69% DV

Electrolytes

Sodium 955.7mg 42% DV
Potassium 418.3mg 9% DV
Cholesterol 123.8mg 41% DV

Vitamins & Minerals

Vitamin A 150.8mcg 17% DV
Vitamin C 6.5mg 7% DV
Vitamin D 1.1mcg 5% DV
Calcium 249.7mg 19% DV
Iron 6.3mg 35% DV
Contains Milk Egg Wheat/Gluten

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use different types of chocolate chips?

Absolutely! You can swap out semi-sweet chocolate chips for milk chocolate or dark chocolate chips, depending on your preference. This will change the flavor profile slightly, making it sweeter or more intense. Feel free to mix and match types for a fun variation.

What can I use instead of marshmallows?

If you prefer not to use marshmallows, you can substitute them with diced dried fruit, such as apricots or cherries, for a chewy texture. However, be aware that this will alter the taste and sweetness of the bars.

Can I freeze these bars?

Yes, these bars freeze well! To freeze, wrap them tightly in plastic wrap and then place them in a freezer-safe container. They can be stored in the freezer for up to 3 months. Thaw at room temperature before serving, or warm them slightly in the microwave for best results.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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