Tin Roof Sundae Bars Recipe

Satisfy your sweet tooth with these incredible Tin Roof Sundae Bars! A homemade twist on the classic ice cream parlor treat, these bars combine a fudgy brownie base, creamy marshmallow topping, crunchy peanuts, and rich chocolate – all without the trip to the ice cream shop. Get ready for a decadent dessert that's surprisingly easy to make!

Prep Time 15 mins
Cook Time 42 mins
Calories 209 kcal
Protein 7g
Rating 5.0 (1 Reviews)
Tin Roof Sundae Bars 25

Recipe Actions

Share this recipe:

Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Tin Roof Sundae Bars

  • 1 (15.25 ounce) package brownie mix
  • ½ cup hot water
  • ⅓ cup vegetable oil
  • 1 large egg
  • 1 cup marshmallow creme
  • 1 cup chopped salted peanuts
  • 1 cup chopped milk chocolate candy bars

Cook Smarter with Sous, Your Kitchen Companion

Missing an ingredient for this Tin Roof Sundae Bars? Need a perfect wine pairing or a healthy side dish idea? Don't guess—ask Sous! Your AI-powered sous-chef is ready to help you swap ingredients, adjust serving sizes, and discover flavor tips in seconds.

How to Make Tin Roof Sundae Bars

  1. Preheat oven to 350°F (175°C).
  2. Grease the bottom of a 13x9 inch baking pan.
  3. In a large bowl, combine one box (15.25 oz) brownie mix, 1/2 cup hot water, 1/3 cup vegetable oil, and 1 large egg.
  4. Beat the mixture with a spoon for 50 strokes.
  5. Spread the batter evenly in the prepared pan.
  6. Bake for 30 minutes.
  7. Remove from oven and evenly spread 1 cup of marshmallow creme over the warm brownie layer.
  8. Sprinkle 1 cup of peanuts evenly over the marshmallow layer.
  9. Top with 1 cup of chopped your favorite chocolate candy bar (e.g., milk chocolate, dark chocolate, etc.).
  10. Return to the oven for 2 minutes, or until the chocolate is completely melted.
  11. Spread the melted chocolate evenly to cover the peanut and marshmallow layers.
  12. Let the bars cool completely before cutting.
  13. Cut into 36 bars.

Nutrition Information (Approximate per serving)

Sodium

6 g

Sugar

21g

Fat

12g

Carbs

7g