Bake in the preheated oven for 15–20 minutes, or until the crescent dough is puffed and a deep golden brown on top, with melted cheese just starting to peek through the seams.
Remove the dish from the oven and let the bites cool for about 5–10 minutes before serving. This helps the cheese set just enough so they’re easier to pick up but still wonderfully gooey inside.
Serve the brie bites warm right from the glass dish. If you’re bringing them to a party, cover the warm dish with foil and re-warm in a low oven (about 300°F / 150°C) for 5–10 minutes once you arrive, if needed.
You can change the whole personality of these bites just by swapping the jam. Try cranberry sauce at the holidays, fig jam for something a little fancier, or even a pepper jelly if your crowd likes a sweet-heat combo. For picky eaters, you can leave a few plain with just brie and no jam, or use a mild strawberry or grape jelly that kids already know and love. If someone in your family isn’t a fan of brie, you can substitute another soft, melty cheese like a young Camembert or even small cubes of mozzarella, though the flavor will be milder. To dress them up, sprinkle a pinch of chopped fresh rosemary or thyme on top of the jam before baking, or add a tiny piece of cooked bacon for a smoky twist—just keep in mind that any add-ins would technically be extra ingredients beyond the basic three. For food safety, keep the brie refrigerated until you’re ready to assemble, and don’t leave the baked bites at room temperature for more than 2 hours at a party. If you’re using an unpasteurized brie, avoid serving it to pregnant guests, very young children, older adults, or anyone with a weakened immune system. Always use a clean knife and cutting board for the cheese, and make sure the bites are baked until the dough is fully cooked through and golden brown.