How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Oreo Brownie Cookie Bar?

You need 11 ingredients. The key ingredients include: FOR THE COOKIE LAYER:, 1 stick Unsalted Butter, 1 whole Egg, 1 pound Sugar Cookie Mix, Family Size, and more.

Is Oreo Brownie Cookie Bar suitable as baking & desserts?

Yes, Oreo Brownie Cookie Bar falls under the Baking & Desserts category and is a great choice for this type of meal.

How do I store leftover Oreo Brownie Cookie Bar?

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

Oreo Brownie Cookie Bar Recipe

Name: Oreo Brownie Cookie Bar
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: FOR THE COOKIE LAYER:; 1 stick Unsalted Butter; 1 whole Egg; 1 pound Sugar Cookie Mix, Family Size; FOR THE BROWNIE LAYER:; 19 ounces, weight Fudge Brownie Mix, Family Size; 1/4 cups Water; 1/3 cups Vegetable Oil; 2 whole Egg; 8 ounces, weight Hot Fudge, Jar; 1 package Oreo Cookies (16 Ounce Bag)

Bake this irresistible Oreo Brownie Cookie Bar at home. Made with COOKIE LAYER, Butter, Egg and Sugar. Easy step-by-step instructions included.

This Oreo Brownie Cookie Bar relies on simple, everyday ingredients such as for the cookie layer:, unsalted butter, whole egg and for the brownie layer:. It comes together quickly and makes 4 servings, at about 925 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Oreo Brownie Cookie Bar delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.

Updated Jun 30, 2026

Serves 4 Baking & Desserts

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Oreo Brownie Cookie Bar

Tips for the best results

Variations & substitutions

My Personal Notes

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