This easy Sweetest Day dessert is the kind of shortcut recipe that feels a little playful but turns out surprisingly cozy and crowd-pleasing. Using frozen crustless peanut butter sandwiches as the base gives you a soft, sweet, peanut buttery layer once baked, and with just four more ingredients, it transforms into a warm casserole-style treat that works beautifully for a casual date night dessert, family movie night, or last-minute gathering when you want something fun without making a big mess in the kitchen after work.
Serve this dessert warm with a scoop of vanilla ice cream or a dollop of whipped topping to balance the rich peanut butter and chocolate flavors. Fresh strawberries or sliced bananas on the side make it feel a little extra special, and a hot cup of coffee or a cold glass of milk both pair really well if you're leaning into that nostalgic peanut butter-and-jelly-meets-dessert vibe.
5-Ingredient Oven Baked Sweetest Day Dessert
Servings: 6
Ingredients
10 solid unthawed frozen crustless peanut butter sandwiches
1 can (14 ounces) sweetened condensed milk
1 cup semi-sweet chocolate chips
1 teaspoon vanilla extract
1/2 cup chopped peanuts
Directions
1. Preheat the oven to 350°F and lightly grease an oven-safe ceramic casserole dish.
2. Arrange the solid unthawed frozen crustless peanut butter sandwiches in a single snug layer in the prepared casserole dish.
3. In a small bowl, stir together the sweetened condensed milk and vanilla extract, then drizzle the mixture evenly over the sandwiches.
4. Sprinkle the chocolate chips and chopped peanuts evenly across the top.
5. Bake for 25 to 30 minutes, until the sandwiches are heated through, the top looks lightly golden around the edges, and the chocolate is melted.
6. Let the dessert rest for 5 to 10 minutes before scooping and serving warm.
Variations & Tips
Add fruit: Sliced bananas tucked between some of the frozen sandwiches or scattered over the top before baking add a soft, sweet layer that goes really well with the peanut butter and chocolate combination.
Crunchy topping: If you want more texture, add the chopped peanuts during the last 10 minutes of baking instead of at the beginning so they stay a little crisper and more noticeable on top.
Make it extra dessert-like: A drizzle of chocolate syrup or caramel sauce right before serving makes this feel more like a plated treat for Sweetest Day, especially with whipped cream or ice cream on the side.
Watch the bake time: Since ovens and casserole dish sizes can vary, start checking around 25 minutes. You want the center hot, the tops softened, and the chocolate melted without letting the edges get too dark.
Easy cleanup tip: If this is going to a potluck or family gathering, bake it in a dish lined with a light coating of nonstick spray and let it rest before serving so each scoop comes out more neatly.