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Oatmeal Fudge Bars Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 3.9 from 35 reviews
  • Author: Emma
  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Total Time: 40 minutes plus 3 hours cooling
  • Yield: 16 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

Deliciously chewy Oatmeal Fudge Bars featuring a buttery oatmeal cookie base layered with rich, smooth chocolate fudge, perfect for an indulgent treat or dessert.


Ingredients

Scale

Oatmeal Cookie Layer

  • 1/2 cup unsalted butter (melted)
  • 1/2 cup granulated sugar
  • 1/2 cup packed brown sugar
  • 1 large egg
  • 2 teaspoons vanilla extract
  • 1 cup + 2 tablespoons all-purpose flour
  • 1/4 teaspoon salt
  • 1/2 teaspoon cinnamon
  • 1 and 1/3 cups old-fashioned oats

Chocolate Fudge Layer

  • 1 and 1/4 cups semi-sweet chocolate chips (or 50-70% dark chocolate)
  • 1 cup sweetened condensed milk (one 14-oz can)
  • 2 tablespoons unsalted butter

Instructions

  1. Preheat and prepare pan: Preheat your oven to 350°F (175°C). Line an 8×8 inch square baking pan with parchment paper, leaving an overhang on the edges for easy removal, or alternatively line with aluminum foil and lightly grease it.
  2. Mix wet ingredients: In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth. Then whisk in the egg and vanilla extract until fully incorporated.
  3. Add dry ingredients: Fold the flour, salt, and cinnamon into the wet mixture. Then gently fold in the old-fashioned oats until evenly combined.
  4. Form oatmeal cookie base: Spoon approximately three quarters of the oatmeal cookie mixture into the bottom of the prepared baking pan. Use the back of a spoon or your fingers to press and spread it evenly to form a solid layer. Set aside the remaining oatmeal mixture (about 1/2 to 3/4 cup) for topping later.
  5. Prepare chocolate fudge layer: Add about 1/2 inch of water to a medium saucepan and bring it to low-medium heat. Place a large heatproof glass bowl on top of the pan ensuring that the bottom of the bowl does not touch the water (creating a double boiler).
  6. Melt fudge ingredients: In the glass bowl, combine the chocolate chips, sweetened condensed milk, and butter. Stir gently and continuously as the mixture melts to ensure a smooth, glossy consistency without burning. Once fully melted and smooth, remove the bowl from heat.
  7. Assemble layers: Pour the melted chocolate fudge evenly over the oatmeal cookie base in the pan.
  8. Add remaining oatmeal topping: Drop the reserved oatmeal mixture in tablespoon-sized dollops over the chocolate fudge layer, ensuring some chocolate fudge remains visible between the dollops for texture contrast.
  9. Bake: Place the pan in the preheated oven and bake for 25 to 30 minutes. The oatmeal cookie pieces on top should look set but not overly crisp, maintaining a chewy texture. Avoid baking longer as it will make the bars less chewy and more crisp.
  10. Cool and slice: Allow the bars to cool completely in the pan for about 3 hours. Use the parchment paper or foil overhang to lift the bars out onto a cutting board. Slice into 16 bars with a sharp knife and serve.

Notes

  • Do not substitute sweetened condensed milk with evaporated milk as this changes the texture and sweetness of the fudge layer.
  • Using parchment paper with an overhang makes it much easier to lift the bars out of the pan cleanly.
  • For a darker chocolate flavor, opt for 50-70% dark chocolate chips instead of semi-sweet.
  • Ensure the water in the double boiler does not touch the bowl bottom to avoid burning the chocolate mixture.
  • Letting the bars cool completely is essential for clean slicing and proper texture development.