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 Tinklee's Gooey Brownie Oreo Bars?

You need 11 ingredients. The key ingredients include: 2 eggs, 1 box Chocolate cake mix, 1/2 cup packed dark brown sugar, 2 tbsp unsweetened baking cocoa (I use hershey), and more.

Is Tinklee's Gooey Brownie Oreo Bars suitable as baking & desserts?

Yes, Tinklee's Gooey Brownie Oreo Bars falls under the Baking & Desserts category and is a great choice for this type of meal.

How do I store leftover Tinklee's Gooey Brownie Oreo Bars?

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.

Tinklee's Gooey Brownie Oreo Bars Recipe

Name: Tinklee's Gooey Brownie Oreo Bars
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 eggs; 1 box Chocolate cake mix; 1/2 cup packed dark brown sugar; 2 tbsp unsweetened baking cocoa (I use hershey); 1/4 cup softened butter; 1/4 cup milk; 2 tsp vanilla extract; 1/3 cup Mini milk chocolate chips (make sure they are mini chips); 1/3 cup Mini milk chocolate chips; 3 1/2 oz marshmallow creme (half 7 oz jar); 10 oreos cookies

Bake this irresistible Tinklee's Gooey Brownie Oreo Bars at home. Made with eggs, Chocolate cake mix, brown sugar and baking cocoa. Easy step-by-step in…

This Tinklee's Gooey Brownie Oreo Bars relies on simple, everyday ingredients such as eggs, box chocolate cake mix, packed dark brown sugar and softened butter. It comes together quickly and makes 4 servings, at about 603 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 Tinklee's Gooey Brownie Oreo Bars 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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Tinklee's Gooey Brownie Oreo Bars

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions