Zero Carbs Keto Parmesan & Fennel Crisps are perfectly crunchy, super tasty and ultra quick to make. Only two ingredients plus optional fennel seeds give you an elegant, savoury snack with minimal fuss.

Maybe you have a leftover egg white, or a wedge of Parmesan that needs using. Or perhaps you simply want something crunchy and cheesy to nibble on, pack for a trip, or serve with a keto sandwich. With just an oven and a few minutes, these little crisps are ready to enjoy.
This recipe is quick, low-effort and yields wafer-thin crisps that taste far better than store-bought alternatives when you want a simple, homemade snack.
Why these Zero Carbs Keto Parmesan & Fennel Crisps stand out
The success of these crisps comes down to a few quality ingredients and a minimal technique.
A lightly beaten egg white binds and tones down the pure cheesiness, while fennel seeds add a fragrant, slightly sweet-anise note (optional if you prefer plain cheese). The most important element is the cheese itself.

Parmigiano Reggiano is my recommended choice because of its concentrated, nutty flavor and traditional production. If you prefer a milder profile, use Parmigiano Padano or another very mature hard cheese. Avoid pre-grated cheeses, which often include anti-caking agents and fillers that can alter texture and increase carbs.
Authentic Parmigiano is essentially lactose-free, which keeps the carb count negligible. That makes these crisps ideal for low-carb, ketogenic, LCHF and gluten-free diets. If you substitute a different cheese, check its nutrition label and adjust your macros as needed.

A full batch made to this recipe contains very few carbs and provides around 319 calories total, so you can enjoy a generous portion without worrying about sugar or carbs.
You can experiment with different mature hard cheeses to alter flavour, but for the cleanest result opt for freshly grated, high-quality cheese and minimal additives.

The simplest recipe — fast and reliable
This method is almost embarrassingly easy, but it consistently yields thin, crisp bites with great flavour. The steps: lightly beat the egg white, fold in grated cheese and fennel seeds if using, shape, bake and cool.

These homemade crisps won’t exactly mimic commercial air-puffed products like Whisps, which require industrial processing to create their particular airy texture. Still, they’re an excellent, inexpensive home alternative that’s satisfyingly crunchy and intensely cheesy.
Enjoy my Zero Carbs Keto Parmesan & Fennel Crisps!
- 1 egg white
- 75 g freshly grated Parmigiano Reggiano or another mature hard cheese
- 1 tsp fennel seeds (optional)
- Lightly beat the egg white with a fork, then fold in the grated cheese and fennel seeds if using.
- Preheat the oven to 180°C (static).
- Form eight small mounds between your palms and place them on a baking tray lined with parchment paper or a silicone baking mat, leaving space for spreading.
- Flatten each mound as thin as possible, then bake for 12–14 minutes. Start checking around 10 minutes to prevent burning.
- Open the oven slightly and leave the crisps inside to cool for a few minutes to firm up.
- Once cooled, slide them off the mat and enjoy.
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