Deliciously Unique Fermented Watermelon Rind Pickle & Cabbage Hamburger on Sourdough Recipe
- Kelly
- Mar 22
- 3 min read
Fermentation has become a popular way to add flavor and nutrition to everyday foods. This recipe takes it a step further by combining fermented watermelon rind pickle & cabbage, and grilled onions with a juicy hamburger patty, all nestled between slices of tangy sourdough bread and a splash of mustard.
The result is a bold, unexpected sandwich that balances savory, sour, and crunchy textures in every bite. If you’re looking to impress your taste buds and guests with something truly original, this fermented watermelon rind pickle & cabbage hamburger on sourdough is a must-try.
Why Fermented Watermelon Rind Pickle Cabbage?
Watermelon rind is often discarded, but it holds a surprising amount of flavor and nutrients. When fermented with cabbage, it transforms into a tangy, crunchy pickle that adds a unique twist to traditional pickles. Fermentation also boosts probiotics, which support gut health. This combination creates a pickle that is not only delicious but also beneficial.
Using watermelon rind in this way reduces food waste and introduces a new flavor profile that pairs beautifully with rich, savory hamburger meat. The cabbage adds a familiar crunch and mild sweetness, balancing the tang of the fermented rind.
We will share the recipe for the watermelon and cabbage separately.

Building the Perfect Hamburger
Ingredients for the Hamburger
Ground beef we prefer Grass Fed 93/7
Salt and pepper
Sourdough bread slices, grilled
Cheese if you choose, we opted out
Grilled onions
Optional condiments: mustard, mayo, or aioli
Cooking the Patty
Form Patties
Shape the ground beef into patties slightly larger than your bread slices. Season both sides with salt and pepper.
Cook
Heat a skillet or grill over medium-high heat. Cook the patties for about 3-4 minutes per side for medium doneness. Add cheese on top during the last minute to melt.
Toast the Bread
Lightly toast sourdough slices until golden and crisp.
Assembling the Fermented Watermelon Rind Pickle Cabbage Hamburger
Place the burger patty on the bottom slice of toasted sourdough.
Spoon a generous amount of grilled onions and fermented cabbage on top of the patty.
Spread your favorite condiment on the top slice of bread.
Add the thinly sliced watermelon “pickle” to the top
Close the sandwich and press gently.
The crunch and tang from the fermented pickle and cabbage cut through the richness of the beef and cheese, while the sourdough adds a chewy, slightly tangy foundation. Each bite offers a complex flavor experience that is both refreshing and satisfying.
Tips for Success
Use fresh, firm watermelon rind for the best texture in your pickle.
Control fermentation time to suit your taste. Longer fermentation means more sourness.
Choose a good sourdough with a mild tang to complement the pickle without overpowering it.
Experiment with spices in the pickle to find your favorite flavor combination.
Serve immediately after assembly to keep the bread from getting soggy.
Why This Recipe Stands Out
This hamburger recipe breaks away from the usual toppings by introducing a fermented element that adds probiotics and a unique flavor. It’s a creative way to use watermelon rind, a part of the fruit that often goes to waste. The sourdough bread enhances the sandwich with its chewy texture and subtle sour notes, making every bite balanced and interesting.
Whether you want to impress friends at a barbecue or enjoy a gourmet twist on a classic burger at home, this recipe offers a fresh take that is both delicious and nutritious.
Try making your own fermented watermelon rind pickle cabbage and enjoy this hamburger that combines tradition with innovation. Your taste buds will thank you.



Comments