This 5-ingredient oven baked gelatin dessert is one of those simple old-fashioned treats that feels a little surprising the first time you make it. Using dry orange gelatin powder right in the baking dish gives the finished dessert a bright citrus flavor and a soft, spoonable texture that makes it fun for family suppers, potlucks, or a budget-friendly weekend sweet. It is especially handy when you want something easy with pantry basics and very little prep.
Serve this dessert slightly warm or nicely chilled, depending on the texture your family likes best. It pairs well with a dollop of whipped topping, a spoonful of vanilla yogurt, or a scoop of vanilla ice cream. For a little extra color on the table, fresh orange slices, strawberries, or a small bowl of berries on the side make it feel extra special without much extra work.
5-Ingredient Oven Baked Orange Gelatin Dessert
Servings: 8
Ingredients
1 box (3 ounces) dry orange gelatin powder
1 can (20 ounces) crushed pineapple with juice
1 can (15 ounces) mandarin oranges, drained
1 cup mini marshmallows
1 cup whipped topping, plus more for serving if desired
Directions
1. Preheat your oven to 350°F and lightly grease an 8x8-inch or similar small ceramic casserole dish.
2. Sprinkle the dry orange gelatin powder evenly across the bottom of the casserole dish.
3. Spoon the crushed pineapple with its juice over the gelatin powder, then scatter the drained mandarin oranges and mini marshmallows evenly over the top.
4. Dollop the whipped topping over the fruit mixture and gently spread it just enough to lightly cover the top without stirring everything together too much.
5. Bake for 25 to 30 minutes, until the marshmallows are softened and the dessert is hot and lightly puffed around the edges.
6. Let the dessert rest for 10 to 15 minutes before serving. Spoon into bowls and add extra whipped topping if you like.
Variations & Tips
Cool and creamy version: If your family prefers a more chilled dessert, let it cool completely and refrigerate it for a few hours before serving. The texture firms up a bit and becomes more like an old-fashioned fruit fluff bake.
Picky eater version: If someone at your table does not love fruit pieces, swap the mandarin oranges for an extra half can of well-drained crushed pineapple so the texture stays more even throughout.
Sweeter topping idea: A little extra whipped topping or even a spoonful of vanilla pudding on the side makes this feel more like a special dessert for company or Sunday dinner.
Baking tip: Keep an eye on the dish near the end of baking. You want the marshmallows soft and the mixture heated through, but not overly browned. Since ovens can vary, check at the 25-minute mark first.
Make-ahead tip: You can assemble the ingredients in the baking dish a short time ahead, cover, and refrigerate until ready to bake. That makes it especially convenient when you are juggling the rest of dinner.