Oatmeal Fudge Revel Bars: Easy Make-Ahead Dessert Step-by-step instructions

Before you start

Before starting, heat the oven to 350°F (175°C). Gather all ingredients and equipment: a 9x13-inch baking dish, mixing bowls, an electric mixer or whisk, a spatula, and a small saucepan for the fudge. Make sure the butter is softened to room temperature for easy creaming.

Measure out the oats, flour, and sugars. Have the eggs and vanilla ready. The fudge ingredients—chocolate chips, sweetened condensed milk, and butter—should be measured and set aside. No need to grease the baking dish.

Instructions

Prepare the Oat Dough

1. 1Make the Oatmeal Dough
   Heat the oven to 350°F (175°C). In a large bowl, beat the butter, brown sugar, and granulated sugar until light and fluffy. Add the eggs one at a time, beating well after each, then stir in the vanilla. In a separate bowl, whisk the flour, oats, baking soda, and salt. Gradually add the dry ingredients to the butter mixture, mixing until just combined. The dough will be thick and crumbly.
   Look for The dough comes together in large clumps and holds together when pressed.
   Tip Use a sturdy spatula or your hands to bring the dough together if it seems dry.
2. 2Press the Base Dough
   Press about two-thirds of the oatmeal dough evenly into the bottom of an ungreased 9x13-inch baking dish. Use your fingers or the back of a spatula to create a smooth, even layer that reaches all the way to the corners.
   Look for The dough layer is even and covers the entire bottom of the dish.
   Tip Lightly wet your fingers if the dough sticks to them.

At the end of this phase, you should have a thick, crumbly dough that holds together when pressed. The butter and sugars should be well creamed, and the dry ingredients fully incorporated.

The dough will be slightly sticky but manageable. Press two-thirds of it evenly into the baking dish, making sure the layer is smooth and reaches the corners. The remaining dough is set aside for the topping.

Layer the Fudge and Topping

3. 3Make the Fudge Layer
   In a small saucepan over low heat, combine the chocolate chips, sweetened condensed milk, and butter. Stir constantly until the chocolate is melted and the mixture is smooth and glossy. Remove from heat and let cool for a few minutes.
   Look for The fudge is thick, shiny, and completely smooth.
   Tip Stir gently to avoid incorporating air bubbles.
4. 4Pour Fudge Over Dough
   Pour the warm fudge mixture evenly over the pressed oatmeal dough. Use a spatula to spread it gently to the edges, covering the entire surface.
   Look for The fudge layer is smooth and covers the dough completely.
   Tip Don't press too hard—keep the base intact.
5. 5Add Crumb Topping
   Crumble the remaining oatmeal dough over the fudge layer, creating a rustic, uneven topping. Some fudge should peek through the crumbles.
   Look for The top is covered with golden clumps of dough, with some fudge visible.
   Tip Leave some larger clumps for a nice texture.

The fudge mixture should be smooth, glossy, and pourable. Pour it over the base and spread gently to the edges. The crumble topping should be scattered evenly, leaving some fudge visible. The surface will look rustic and inviting. At this point, the pan is ready for the oven.

Bake and Cool

6. 6Bake the Bars
   Bake in the preheated oven for 25 to 30 minutes, until the top is golden brown and the edges are set. The center may still look slightly soft, but it will set as it cools.
   Look for The top is golden, and the fudge is bubbling slightly around the edges.
   Safe temperature 160°F (71°C) internal temperature (egg dishes)
   Tip Bake until the top is deep golden, not just pale.
7. 7Cool and Slice
   Let the bars cool completely in the pan on a wire rack, about 1 hour. Once cool, cut into squares with a sharp knife. For cleaner slices, chill the bars for 30 minutes before cutting.
   Look for The bars are firm and hold together when cut.
   Tip Wipe the knife clean between cuts for neat edges.

After baking, the top should be golden brown, and the fudge will be bubbling around the edges. The bars should feel firm to the touch, with a slight give in the center. Cool completely on a wire rack until the pan is no longer warm. Once cool, the bars will have set and can be sliced into squares.

Common mistakes

One common mistake is overmixing the dough, which can make the bars tough. Mix just until the flour is incorporated. Another issue is pressing the base too thin or unevenly—make sure it covers the entire bottom.

When pouring the fudge, avoid spreading it too aggressively, as it can mix with the dough. Baking too long can dry out the bars; start checking at 25 minutes. Cutting while warm will cause the fudge to smear—always cool completely, or chill for cleaner slices.

How to tell it’s done

The bars are done when the top is golden brown and the edges are set. The center may still look slightly soft, but it will firm up as it cools. To ensure the eggs are fully cooked, the internal temperature of the bars should reach at least 160°F (71°C) in the center.

Use an instant-read thermometer inserted into the middle of the bars to check. If the top is browning too quickly, loosely cover with foil for the last 5 minutes. Cool completely before slicing for clean, neat bars.

• Egg dishes: 160°F (71°C) in the thickest part