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Indulge in layers of chocolate heaven with these decadent mud bars. Each layer builds flavor and texture - from crispy Oreo crust to fudgy brownies, silky chocolate mousse, and cloud-like whipped cream, creating the ultimate chocolate lover's dream.
Through extensive testing, I've discovered that proper cooling between layers creates the perfect texture combination.
Essential Ingredients
- For Crust:
- Oreo Cookies: Finely crushed (30)
- Unsalted Butter: Melted
- Reserved Crumbs: For topping
- For Brownie Layer:
- All-Purpose Flour: Measured correctly
- Unsweetened Cocoa: Regular, not Dutch
- Large Eggs: Room temperature
- Unsalted Butter: Room temperature
- Pure Vanilla Extract: Quality brand
- For Mousse and Topping:
- Instant Chocolate Pudding: 3.9 oz box
- Whole Milk: For richness
- Whipped Topping: Divided use
- Hot Fudge Sauce: Room temperature
Detailed Instructions
- 1. Crust Preparation:
- Preheat oven to 350°F. Spray a 9x13 pan with non-stick spray. Process Oreos in a food processor until fine crumbs. Reserve ¼ cup for topping. Mix remaining crumbs with melted butter, press into prepared pan.
- 2. Brownie Layer:
- Whisk flour, cocoa, baking powder, and salt. Beat eggs, sugar, butter, and vanilla until light and fluffy. Fold in dry ingredients just until combined. Spread over crust. Bake for 25-30 minutes until barely set - toothpick should have slight batter.
- 3. Mousse Creation:
- Beat milk, pudding mix, and powdered sugar until soft-set, about 2 minutes. Fold in half the whipped topping until smooth. Spread over completely cooled brownies.
- 4. Final Assembly:
- Chill for 1-1½ hours until mousse is set. Drizzle with room temperature hot fudge. Top with remaining whipped topping and reserved Oreo crumbs.
- 5. Setting Time:
- Refrigerate for at least 2 hours or overnight for best results. This allows all layers to meld together perfectly.
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Storage and Serving Solutions
Store covered in the refrigerator for up to 4 days. For cleanest cuts, dip knife in hot water and wipe clean between slices. Can be frozen for up to 3 months - thaw overnight in the refrigerator.
Perfect Pairings
- Cold milk
- Hot coffee
- Vanilla ice cream
- Fresh raspberries
- Mint chocolate chip ice cream
- Hot chocolate
Flavor Variations
Create signature versions with:
- Different cookie crusts
- Peanut butter mousse
- White chocolate drizzle
- Mint chocolate chips
- Caramel sauce
- Crushed candy bars
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Final Notes
Success lies in proper cooling times and temperature control. Each layer should be perfect before adding the next, creating that ultimate chocolate lover's experience.
Frequently Asked Questions
- → Can I make these ahead?
- Yes, prepare up to 2 days ahead and store in refrigerator.
- → Why do brownies need to cool first?
- Hot brownies will melt the mousse layer and prevent proper setting.
- → Can I freeze these bars?
- Yes, freeze for up to 3 months. Thaw overnight in refrigerator.
- → Can I use homemade whipped cream?
- Yes, substitute equal amounts of freshly whipped cream for the topping.
- → How do I get clean cuts?
- Use a sharp knife dipped in hot water and wiped clean between cuts.