These oven baked oatmeal creme pie bars are the kind of easy dessert that feels a little nostalgic and a lot crowd-pleasing. Using whole oatmeal creme pies as the base gives you soft oatmeal cookie layers and sweet creme filling without much effort, and with just a few more simple ingredients, everything bakes into a gooey, sliceable treat that is perfect for potlucks, family movie nights, or those evenings when you want something homemade without starting from scratch.

Serve these bars slightly warm or fully cooled with a scoop of vanilla ice cream, a drizzle of caramel sauce, or a cold glass of milk. For a dessert tray, I like to pair them with fresh strawberries or banana slices to balance the sweetness, and they are also lovely with hot coffee after supper or tucked into lunchbox-style portions for a special treat the next day.

Oven Baked 5-Ingredient Oatmeal Creme Pie Bars

Servings: 12 bars

Finished oatmeal creme pie bars in a glass baking dish
Finished oatmeal creme pie bars in a glass baking dish

Ingredients

8 whole oatmeal creme pies

1 can sweetened condensed milk, 14 ounces
1 cup white chocolate chips
8 ounces whipped topping, thawed
1/2 teaspoon ground cinnamon

Directions

1. Preheat the oven to 350°F and lightly grease a clear glass 9x13 baking dish.

2. Arrange the whole oatmeal creme pies in a single layer across the bottom of the prepared baking dish, fitting them snugly.

3. Pour the sweetened condensed milk evenly over the oatmeal creme pies, then sprinkle the white chocolate chips and ground cinnamon across the top.

4. Spread the thawed whipped topping gently over the top in an even layer, covering as much of the surface as possible.

5. Bake for 20 to 25 minutes, until the dessert is heated through, the topping is lightly golden in spots, and the edges are bubbling.

6. Let the bars cool for at least 20 minutes before slicing into squares and serving.

Variations & Tips

For extra richness: Add a handful of butterscotch chips along with the white chocolate chips if your family loves a deeper caramel-like sweetness. It makes these bars taste especially cozy in the fall and winter months.

For picky eaters: Skip the cinnamon if your little ones prefer a plainer flavor. The bars will still be soft, sweet, and delicious, and sometimes the simplest version is the one that disappears fastest.

To make cleaner slices: Chill the baked dessert for an hour after it cools to room temperature, then cut with a sharp knife wiped clean between slices. This helps the creamy layers hold together better.

Serving warm: If you want more of a spoon-dessert feel, serve it warm straight from the pan with a large spoon instead of cutting bars. It turns into a wonderfully gooey treat that is perfect with ice cream.

Storage tip: Cover leftovers and refrigerate for up to 3 days. A short warm-up in the microwave makes each piece soft and melty again without drying it out.