Save this recipe for your next trip.
Last updated: August 2026 | 9 min read
Written by Alex Schult
Editor in Chief of 4wdTalk.com. 15+ years of off-road and overlanding experience with 1,000+ hours on the trail.
This recipe was tested on an actual overland trip. Amazon affiliate links support 4wdTalk.com at no extra cost to you.
In This Recipe
Why This Recipe Works for Overlanders
Foil packet peach crumble solves the problem of wanting cobbler on the trail without a Dutch oven, a mixing bowl, or a baking dish that takes up cook box space. Layer sliced peaches with the crumble topping, fold the foil flat, and let the coals bake it in place.
I started making this after realizing a Dutch oven cobbler feeds a group but takes real setup and cleanup for what amounts to one dessert. This packet version scales to exactly one serving per person. Each packet is its own bowl, so there is no shared dish to pass around or wash.
The oat crumble topping is what makes this taste like an actual cobbler instead of just stewed fruit. It browns and crisps against the top of the packet while the peaches underneath turn soft and syrupy. If you want the same warm-fruit approach in a different form, our Foil Packet Campfire Apples uses the same coal stage with a stuffed whole apple instead of sliced fruit.
Peaches hold up fine in a cooler for a few days once sliced and packed in a sealed container. This recipe works well mid-trip when fresh peaches are still firm enough to slice cleanly.
Equipment You Need
This recipe uses the same core kit as every foil packet camping recipe. Heavy-duty aluminum foil at 0.94 mil (Reynolds Wrap Heavy Duty) handles the coal contact without tearing. Long-handled tongs pull the packet off coals without burned knuckles. Heat-resistant gloves rated to at least 500F handle the flip. A paring knife slices the peaches cleanly, and a small container keeps the crumble topping mixed and ready.
Gear for This Recipe
TempPro TempSwift 1 Sec Meat Thermometer Digital for Kitchen Cookin…
Ingredients
Serves 4 | Prep 10 min | Cook 20 min | Medium coals
- 4 peaches, sliced
- 1/4 cup brown sugar
- 1 teaspoon cinnamon
- 1/2 cup rolled oats
- 4 tablespoons butter, cut into pats
- Foil, one large sheet or one per serving
Step-by-Step Instructions
Home Prep
Slice the peaches at home and pack them in a sealed container with a splash of lemon juice to slow browning. Mix the brown sugar, cinnamon, and rolled oats together in a separate small container so the crumble topping is ready to sprinkle at camp. Cut the butter into pats ahead of time and keep it in the cooler.
At camp, lay a bed of sliced peaches in the center of a sheet of foil. Sprinkle the oat crumble mixture evenly over the top, then tuck two or three pats of butter into the crumble. Fold the foil into a flat-pack seal, crimping the edges so the juices stay inside during the cook.
At Camp
Build a bed of medium coals, glowing orange with a thicker layer of gray ash than a hot fire needs. Place the flat-packed peach crumble directly on the coals and leave it undisturbed, since flipping can shift the topping away from the fruit.
Cook 18 to 20 minutes, until the crumble browns and the peaches soften enough that a fork slides through easily. Open carefully, since trapped steam releases fast from the seam. Eat straight from the foil with a spoon while the crumble is still warm and slightly crisp.
Coal Bed Math
Coal temperature determines whether the crumble browns evenly while the peaches soften without turning to mush in this recipe’s 18 to 20 minute window. Use this table to read your coal bed before placing packets.
| Coal Stage | Temperature | Best For |
|---|---|---|
| Hot | 500F+ | Searing, quick shrimp packets |
| Medium-Hot | 400-500F | Taco meat, potatoes and onions |
| Medium | 350-400F | Peach crumble, campfire apples |
| Medium-Low | 250-350F | Chocolate fondue, delicate desserts |
Field Tips
Pick peaches that are ripe but still firm enough to hold a slice. Overripe peaches turn to mush before the crumble finishes browning, and underripe ones stay tough even after 20 minutes.
Crimp the foil seams tight along the flat-pack fold. Peach juice runs thinner than most fillings and finds any loose seam fast, so a tight seal keeps the syrup inside the packet instead of dripping onto the coals.
Store the brown sugar, oats, and butter away from your sleeping area overnight, not just in a sealed bag in the cook box. Sugary, scented food draws bears and other wildlife into camp, especially in bear country like the Sierras or Big Bear. The National Park Service has guidance on storing scented food safely on its bear safety food storage page. It is worth a read before any trip through bear country.
Mix the crumble topping at home, not at camp. Combining the oats, sugar, and cinnamon in a sealed container ahead of time means one less bowl and one less thing to measure at the picnic table.
Coal and Cleanup Gear
Variations and Substitutions
The base foil packet peach crumble build takes well to swaps once the layering feels natural. Try one change at a time so the cook time stays predictable.
- Mixed fruit swap: Add sliced nectarines or plums alongside the peaches for a layered fruit flavor.
- Nut topping: Fold chopped pecans or almonds into the oat crumble for extra crunch.
- Granola swap: Use a store-bought granola instead of plain oats for a topping with built-in sweetness.
- Ginger addition: Add a pinch of ground ginger to the cinnamon for a warmer, spicier flavor.
- Dried fruit boost: Mix in a spoonful of dried cranberries or raisins with the peaches for extra sweetness.
- Vanilla drizzle: Add a splash of vanilla extract to the crumble mixture before sprinkling it over the fruit.
- Whole-fruit version: Skip the slicing and crumble topping for a stuffed whole fruit instead. See our Foil Packet Campfire Apples for that approach.
Storage and Leftovers
Foil packet peach crumble tastes best warm off the coals and does not hold well as leftovers. The crumble topping loses its crisp texture within an hour as it absorbs moisture from the fruit.
If a packet does not get finished, scoop the peaches and crumble into a small container. Store it in the cooler for up to a day rather than saving it in the foil. The mixture works well spooned over oatmeal or yogurt the next morning. A dedicated trash bag for used foil keeps the drawer system clean and supports a Leave No Trace pack-out.
Frequently Asked Questions
How do you know when foil packet peach crumble is done?
Check that the crumble has browned and a fork slides easily through the peaches. Peel back a corner of the foil to check, then reseal and cook a couple more minutes if the fruit still feels firm.
Why did the crumble stay soft instead of browning?
The coals were likely too cool or the packet sat too far from direct contact. Medium coals with a thick layer of gray ash give the crumble enough direct heat to brown properly.
Can you use canned peaches instead of fresh?
Yes, but drain them well first. Canned peaches carry extra liquid that can make the crumble soggy instead of crisp if it is not drained before layering.
What is the difference between peach crumble and campfire apples?
Peach crumble slices the fruit and tops it with an oat crumble, while our campfire apples recipe stuffs a whole cored apple with a spiced filling instead.
How do you keep bears away from the brown sugar and butter?
Store sugary, scented ingredients away from your sleeping area overnight. Use a sealed container or vehicle rather than a tent, especially in bear country like the Sierras.
Can you make foil packet peach crumble ahead of time?
Slice the peaches and mix the crumble topping at home, then assemble and cook the packet at camp for the best texture.
Can you use frozen peaches instead of fresh?
Thawed and well-drained frozen peaches work in a pinch, though fresh peaches hold their shape better and release less extra liquid during the cook.
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