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    Home » Recipes » Bars and Brownies

    Oatmeal Fudge Bars Recipe

    February 21, 2023 | Updated March 13, 2023 | Heather Warburton

    Jump to Recipe Print Recipe
    Sliced oatmeal fudge bars and side view of bar.

    This Oatmeal Fudge Bars Recipe is made with a simple oatmeal cookie base and layered with a decadent fudge filling. A delicious sweet treat to share with all your family and friends.

    Close up top view of sliced oatmeal fudge bars.

    This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases at no extra cost to you. Click HERE to read my policies.

    Why You'll Love Oatmeal Fudge Bars

    • Delicious dessert that is made with a chewy oatmeal cookie base and a creamy chocolate fudge center.
    • Full of textures with crunchy, chewy and creamy all in just one bite!
    • Crowd pleasing treat perfect for pot lucks, parties, family gatherings or just enjoy yourself.
    • These bars look like they are complicated but they are super easy.

    Oatmeal Fudge Bars Ingredients

    • Salted Butter
    • White Sugar
    • Light Brown Sugar
    • Eggs
    • Pure Vanilla Extract
    • Unbleached All Purpose Flour
    • Baking Powder
    • Salt
    • Old Fashioned Oats
    • Semi-Sweet Chocolate Chips
    • Sweetened Condensed Milk
    Oatmeal fudge bars ingredients.

    Substitution Suggestions:

    • Salted Butter: Unsalted butter can be used. I suggest adding an additional ½ teaspoon of salt to the cookie dough.
    • Pure Vanilla Extract: Pure extract is always best. It will provide a more natural flavor rather than the imitation vanilla extract that can leave an off putting after taste in your baked goods.
    • Unbleached All Purpose Flour: If you like you can use white whole wheat flour, whole wheat flour or a blend of both.
    • Old Fashioned Oats: Rolled oats is what gives this dough the texture it needs to be chewy. I don't recommend using quick oats for this recipe.
    • Semi-Sweet Chocolate Chips: You can use dark chocolate chips or milk chocolate chips. Whichever you prefer.
    Side view of an oatmeal fudge bar with bite taken out.

    This oatmeal fudge bar recipe has an oatmeal base with a chocolate fudge layer that is sure to cure any sweet tooth craving!

    How to Make Oatmeal Fudge Bars

    1. In a stand mixer with paddle attachment or with hand mixer and large bowl, cream butter, sugar and brown sugar together until light and fluffy.
    2. Then, add vanilla extract and eggs one at a time beating well after each egg.
    3. Add the dry ingredients: all purpose flour, baking powder, and salt and mix just until combined.
    4. Lastly, add the rolled oats 1 cup at a time, mixing slowly after each addition.
    • Oatmeal added to cookie dough.
    • Oatmeal cookie base patted out evenly in glass rectangle baking dish.
    1. In a 9x13 baking dish greased or lined with parchment paper, add ⅔ of the cookie dough and pat it out in an even layer.
    2. In a microwave-safe bowl, combine semisweet chocolate chips, sweetened condensed milk, 2 tablespoons butter and a pinch of salt.
    • Chocolate fudge ingredients in black microwave safe bowl.
    • Melted chocolate mixture in black microwave bowl with red spatula.
    1. Microwave for 1 minute, stir. If needed microwave an additional 15 seconds until the chocolate mixture is completely melted.
    2. Stir in the vanilla extract.
    3. Immediately spread the fudge filling evenly over the cookie base.
    4. Then take pinches of the remaining oatmeal mixture and lay it on top of the chocolate letting some of the fudge peek through.
    • Chocolate layer spread out evenly on top of oatmeal cookie layer.
    • Fully assembled bars in glass baking dish.
    1. Bake in a 350°F preheated oven for 30-35 minutes until the cookie dough is golden brown along the edges and no longer looks glossy on top.
    2. Let bars cool completely, then slice, serve and enjoy!
    Pan of sliced oatmeal fudge bars sliced.

    Want to try more oatmeal bars recipes? Try these Strawberry Rhubarb Bars, Apple Pie Bars or Blueberry Cereal Bars.

    Storing Fudgy Oat Bars

    Store these bars in an airtight container at room temperature. They'll stay fresh and chewy for 4-5 days.

    These fudgy oat bars can also be frozen. Let the bars cool completely and then add them to a freezer safe air tight container between layers of wax paper. Thaw at room temperature for a few hours before enjoying.

    Tips for Fudgy Oatmeal Bars

    • Line the baking dish with parchment paper leaving an inch overhang on the long edge so you can easily lift the bars out of the dish once cooled.
    • Spray your hands with cooking spray before patting dough into baking dish. This will prevent the dough from sticking to you and creating a mess.
    • Don't microwave the chocolate for too long or it will seize. Use 15 second intervals and stir well in between.
    • For best results do not overbake the bars. The base needs to have golden brown edges and the top cookie will be golden brown and no longer look glossy.
    • Let the bars cool completely before slicing. The filling needs time to cool and set so the bars stay in tack when sliced.
    Side view of two oatmeal fudge bars stacked next to other bars.

    More Dessert Bar Recipes:

    • Chocolate Chip Cookie Bars
    • Strawberry Cheesecake Brownies
    • Cranberry Bars
    • Peanut Butter Brownie Bars
    • Butterscotch Brownies
    • S'mores Brownies
    • Sugar Cookie Bars
    Close up top view of sliced oatmeal fudge bars.
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    Oatmeal Fudge Bars Recipe

    This Oatmeal Fudge Bars Recipe is made with a simple oatmeal cookie base and layered with a decadent fudge filling. A delicious sweet treat to share with all your family and friends.
    Course: Dessert
    Cuisine: American
    Keyword: fudgy oat bars, oatmeal fudge bars
    Prep Time: 15 minutes
    Cook Time: 30 minutes
    Servings: 20
    Author: Heather

    Ingredients

    Dough:

    • 1 cup salted butter, softened
    • 1 cup sugar
    • 1 cup brown sugar
    • 2 large eggs
    • 1 teaspoon pure vanilla extract
    • 1¾ cups all purpose flour
    • ½ teaspoon baking powder
    • ¼ teaspoon salt
    • 3 cups old fashioned oats

    Fudge:

    • 1½ cups semi-sweet chocolate chips
    • 14 ounces sweetened condensed milk
    • 2 tablespoons salted butter
    • small pinch salt
    • 1 teaspoon pure vanilla extract

    Instructions

    • Preheat oven for 350°F and grease a 9x13 baking dish with nonstick cooking spray or line with parchment paper.
    • In a stand mixer with paddle attachment or with hand mixer, cream together the butter, sugar and brown sugar until light and fluffy.
    • Then, add vanilla extract and eggs one at a time beating well after each egg.
    • Add the dry ingredients: all purpose flour, baking powder, and salt and mix just until combined.
    • Lastly, add the rolled oats 1 cup at a time, mixing slowly after each addition.
    • Add ⅔ of the cookie dough to prepared baking dish and pat it out evenly.
    • In a microwave safe bowl, combine chocolate chips, sweetened condensed milk, 2 tablespoons butter and a pinch of salt. Microwave for 1 minute, stir. If needed microwave an additional 15 seconds until everything is completely melted.
    • Stir in the vanilla extract and immediately spread the fudge filling evenly over the cookie base.
    • Then take pinches of the remaining cookie dough and lay it over the fudge letting some of the fudge peek through.
    • Bake for 30-35 minutes until the cookie dough is golden brown along the edges and no longer looks glossy on top.
    • Let bars cool completely, then slice, serve and enjoy!

    Nutrition

    Calories: 408kcal | Carbohydrates: 55g | Protein: 6g | Fat: 19g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.4g | Cholesterol: 54mg | Sodium: 159mg | Potassium: 231mg | Fiber: 3g | Sugar: 37g | Vitamin A: 405IU | Vitamin C: 1mg | Calcium: 94mg | Iron: 2mg
    Tried this recipe?Please rate the recipe, leave a comment and tell me how much you loved it!
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