This Onion Burger is topped with Onions, Mustard and a French Onion Sauce on a Buttered & Toasted Bun. Add some Cheese and/or some Green Onions!
Burger Patties
Make the Burger Patties in advance, weighed out at 90 g per patty. Check out my post on How to Make Burgers for great information on Burgers.
The seasoning used on the burger is below. Add some Onion powder for an extra boost of Onion Flavor.
- 1 Tbl Sea Salt
- 1 tsp Black Pepper
- 1/2 tsp White Pepper
Browned Onions
For true Caramelized Onions, you will need about 4–5 hours. No Sugar or Wines, Just Onion, Salt & Butter with low heat and mixing often. For this recipe, we are just softening or browning to your liking.
- Slice the onions from end to end and place into a skillet with Bacon Fat, pinch of Sugar & Salt over medium heat.
- Cook until softened, then reduce the heat to medium low and cook until softened or browned to your liking while covered and mixing often, anywhere from 20-45 minutes.
- Add Butter and optionally deglaze the pan with a splash of wine or beer and continue to cook until evaporated.
- Add some Green Onions and mix in before taking off the heat.
For the below pic, do the following. 1 onion, cooked for about 45 minutes. At 10 minutes of remaining cooking time, add another onion. Then add Butter at about 5 minutes of remaining cooking time and finally Green Onions before taking it off the heat.

You don’t have to cook the onions this long, you can instead just fry them up in Bacon Fat & Butter with a pinch of Salt & Sugar until softened. How Browned or Caramelized the Onions are is entirely up to you.
Onion Burger Toppings
Add more toppings as you see fit, such as some Fried Onions, Dill Pickles, Cheese, Lettuce, Tomatoes, Bacon.
Turn this burger into a Mushroom Swiss with added Sautéed Mushrooms & some Swiss Cheese!
French Onion Dip
Pick up some Litehouse French Onion Dip for the Sauce component for the Onion Burger. Along with some Yellow Mustard. Use about 1–2 Tbl of Onion Dip per Burger and about 8 dollops of Yellow Mustard.

Equipment
- 1 Skillet
Ingredients
- 2 90 g Burger Patties
- 2 Sesame Buns - Buttered
- 1-2 Tbl Litehouse French Onion Dip - Per Burger
- 8 Dollops Yellow Mustard - Per Burger
Caramelized Onions
- 1 Large Onion
- Pinch of Sea Salt
- Pinch of Sugar
- 1 Tbl Bacon Fat
- 1 Tbl Butter
- 1 Stalk Green Onion - Optional
Instructions
- Slice 1 Onion into strips and place into frying pan with Bacon Fat, a pinch of Salt & Sugar over medium heat. Cook until the onions are softened and reduce the heat to medium low and cover. Stir occasionally until browned to your liking. Anywhere from 20 to 45 minutes.Add Butter & Green Onions if using. Mix well and remove from heat. Empty into small bowl to use on the burger later.
- Place skillet back on medium heat to toast the buns.
- Fry up the Burger Patties for about 3 minutes per side. Season with Salt & Pepper. Assemble the Burger :Bottom BunMustardCaramelized OnionsBurger PattyFrench Onion Dip On the CrownServe or wrap in waxed paper to serve later.
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