FlameThrower 1/3 lb. Signature Stackburger
The FlameThrower 1/3 lb. Signature Stackburger is Dairy Queen's spicy stackburger, with FlameThrower sauce, pepper jack cheese, lettuce, and tomato on a soft toasted bun.
At a Glance
| Size | Price | Calories |
|---|---|---|
| Double | Varies by location | 720 cal |
Prices and availability vary by location. Nutrition values are per official sources, last verified October 4, 2026. Where Dairy Queen publishes no figure, we say so instead of guessing.
Sizes
Offered in: Double — per the official menu. Not every store carries every size.
Nutrition
Official calories per size, copied exactly from Dairy Queen’s published product pages (verified October 4, 2026). Texas locations use a separate authorized nutrition system, so these figures don’t apply there. Try the calorie calculator to compare items.
Price
Prices vary by location — Dairy Queen doesn’t publish a national price list. We publish reference prices from named stores with check dates instead of guessing.
Allergens
Dairy Queen kitchens handle milk, wheat, soy, eggs, peanuts, and tree nuts, so cross-contact is possible. Check the official allergen information and ask your local store before ordering if you have an allergy. No guarantees can be made about allergen-free preparation.
Frequently asked questions
How many calories are in a FlameThrower 1/3 lb. Signature Stackburger?
Double 720 cal.
How many calories are in a FlameThrower Stackburger?
Per Dairy Queen's official nutrition: Double 720 cal.
How spicy is the FlameThrower Stackburger?
It is DQ's spicy burger option — FlameThrower sauce and pepper jack bring the heat. Spice tolerance varies, so start with a single bite if you are unsure.
Sources
Official item page: dairyqueen.com; verified October 4, 2026. Last verified: October 4, 2026. This is an independent guide, not affiliated with Dairy Queen. See the full Dairy Queen menu.