Table of Contents

Toll House Mud Bars: A Chocolate Lover’s Dream

There’s something about the smell of chocolate baking in the oven that instantly transports me back to my grandmother’s kitchen. She always had a batch of something decadent simmering away, and more often than not, it was a pan of these Toll House Mud Bars. The fudgy center, the slightly crisp edges, and the rivers of melted chocolate chips always made me feel instantly comforted and cared for. It’s a simple recipe, but one that holds so many sweet memories.

Recipe Overview

Prep Time: 15 minutes
Cook Time: 23-25 minutes
Total Time: 40 minutes
Yields: 16 cookie bars
Dietary Type: Vegetarian

Ingredients

1 cup flour
1 tablespoon flour
1/2 teaspoon baking soda
1/2 teaspoon salt
3/4 cup firmly packed brown sugar
1/2 cup softened butter
1 teaspoon vanilla
1 egg
1 (12 ounce) bag NESTLÉ® TOLL HOUSE® Semi-Sweet Chocolate Morsels, divided
1/2 cup chopped nuts (optional, can omit for allergies)

Equipment Needed

9″x9″ baking pan
Foil
Mixing bowls
Electric mixer or whisk
Measuring cups and spoons

Instructions

Preheat your oven to 375°F (190°C). Line a 9″x9″ baking pan with foil, leaving an overhang on the sides for easy removal.
In a medium bowl, whisk together 1 cup of flour, 1/2 teaspoon of baking soda, and 1/2 teaspoon of salt. Set aside. This ensures the leavening agents are evenly distributed throughout the dry ingredients.
In a separate, larger bowl, cream together 3/4 cup firmly packed brown sugar, 1/2 cup softened butter, and 1 teaspoon of vanilla using an electric mixer or a sturdy whisk. Beat until the mixture is light and creamy. This usually takes about 2-3 minutes with an electric mixer.
Add 1 egg to the butter mixture and beat until well combined.
Gradually add the flour mixture to the wet ingredients, mixing until just combined. Be careful not to overmix, as this can result in tough bars.
Stir in 1 and 1/3 cups of NESTLÉ® TOLL HOUSE® Semi-Sweet Chocolate Morsels and 1/2 cup of chopped nuts (if using). Make sure the chocolate and nuts are evenly distributed throughout the batter.
Spread the batter evenly into the prepared foil-lined 9″x9″ pan.
Bake in the preheated oven for 23-25 minutes, or until a toothpick inserted into the center comes out with slightly moist crumbs. The edges should be lightly golden.
Immediately after removing the pan from the oven, sprinkle the remaining 2/3 cup of NESTLÉ® TOLL HOUSE® Semi-Sweet Chocolate Morsels evenly over the top of the hot bars.
Let the chocolate morsels sit for a minute or two, allowing them to soften and become shiny. Once they are shiny, spread the melted chocolate evenly over the top of the bars.
Let the bars cool completely in the pan. For a cleaner cut, you can chill them in the refrigerator for 5-10 minutes to allow the chocolate to set firmly.
Use the foil overhang to lift the bars out of the pan. Cut into 16 even squares.

Expert Tips & Tricks

Softened Butter is Key: Ensure your butter is truly softened, but not melted. This helps create a creamy batter and prevents the bars from being too greasy.
Don’t Overbake: Overbaking will result in dry, crumbly bars. Err on the side of slightly underbaked for a fudgier texture.
Chill for Clean Cuts: Chilling the bars slightly before cutting makes it easier to achieve clean, even squares.
Upgrade Your Chocolate: Feel free to use a mix of dark, milk, and semi-sweet chocolate chips for a more complex flavor profile.
Nut Alternatives: If you’re not a fan of nuts, or have allergies, substitute with chopped pretzels, toffee bits, or even dried fruit.

Serving & Storage Suggestions

These Toll House Mud Bars are delicious served at room temperature or slightly chilled. They pair perfectly with a glass of cold milk, a scoop of vanilla ice cream, or a cup of hot coffee.

Storage: Store leftover bars in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to a week.
Freezing: For longer storage, freeze the bars in an airtight container or freezer bag for up to 2 months. Thaw at room temperature before serving.
Reheating: While not necessary, you can warm individual bars in the microwave for a few seconds to make the chocolate melty again.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	252.6 kcal	N/A
Calories from Fat	132 g	52%
Total Fat	14.7 g	22%
Saturated Fat	7.8 g	39%
Cholesterol	28.5 mg	9%
Sodium	192.4 mg	8%
Total Carbohydrate	30.9 g	10%
Dietary Fiber	1.9 g	7%
Sugars	21.8 g	87%
Protein	2.9 g	5%

Variations & Substitutions

Gluten-Free: Substitute the all-purpose flour with a gluten-free all-purpose blend. You may need to add a little more liquid to achieve the right consistency.
Dairy-Free: Use a dairy-free butter substitute and dairy-free chocolate chips.
Peanut Butter Mud Bars: Swirl a tablespoon or two of peanut butter into the batter before baking for a peanut butter twist.
Mint Chocolate Mud Bars: Add 1/2 teaspoon of peppermint extract to the batter and use mint chocolate chips.
Salted Caramel Mud Bars: Drizzle salted caramel sauce over the cooled bars for an extra touch of indulgence.

FAQs (Frequently Asked Questions)

Q: Can I use a different size pan?
A: While a 9″x9″ pan is recommended for the specified baking time, you can use an 8″x8″ pan for slightly thicker bars. Just be sure to adjust the baking time accordingly, checking for doneness a few minutes earlier.

Q: Can I use margarine instead of butter?
A: While margarine can be used as a substitute, butter provides a richer flavor and better texture. If using margarine, opt for a higher-quality brand.

Q: My bars are too crumbly. What did I do wrong?
A: Overmixing the batter or overbaking the bars can result in a crumbly texture. Be sure to mix the flour in gently and avoid overbaking.

Q: The chocolate on top isn’t melting. What should I do?
A: If the chocolate isn’t melting from the residual heat, you can briefly place the pan back in the warm oven (turned off) for a minute or two to help it soften.

Q: Can I make these ahead of time?
A: Absolutely! These bars can be made a day or two in advance and stored in an airtight container at room temperature. They’re also great for freezing.

Final Thoughts

These Toll House Mud Bars are a testament to the fact that sometimes, the simplest recipes are the most satisfying. Whether you’re baking them for a special occasion or just a cozy night in, I hope this recipe brings you as much joy and comfort as it has brought me over the years. Don’t be afraid to experiment with different variations and make them your own. I’d love to hear about your creations and any personal touches you add! Consider serving them with a scoop of vanilla ice cream and a dusting of cocoa powder for a truly decadent experience. Happy baking!

Toll House Mud Bars Recipe