Keto Fathead Pizza Crust with Lupin (Low-Carb)

Keto Low Carb Lupin FatHead Pizza Base. 2g carbs for 1/4

Low-carb FatHead pizza recipes are everywhere online, each with small variations. The core idea is consistent: melt a mild, stringy cheese, mix in an egg and a low-carb flour, knead a little and shape a crisp, tasty base.

I’ve refined my version of this classic low-carb pizza base using lupin flour, and I’m excited to share it. Below you’ll find clear step-by-step instructions, photos, tips and nutrition information to make a crisp, low-carb pizza at home.

What is FatHead pizza?

FatHead is the name given to a popular low-carb, cheese-based pizza crust that gained attention after being featured in a documentary in 2009. It quickly became a favorite in the keto community because it delivers a very satisfying, dough-like crust while staying low in carbohydrates. The technique—melting cheese, adding an egg and a low-carb flour, then shaping and baking—remains the same across most recipes.

If you enjoy home cooking and low-carb recipes, this Lupin FatHead adaptation is worth trying. Lupin flour offers a different texture and a lower carb count than many other low-carb flours, but it does come with a couple of important considerations (see allergy warning below).

Allergy warning: If you have a peanut allergy, you may also react to lupins. If you are uncertain or have a history of legume allergies, avoid lupin flour or consult a healthcare professional. Lupin can already be present in some processed foods, so take care if you are highly allergic.

My Keto Low Carb Lupin FatHead Pizza Base

This recipe replaces part of the usual almond or coconut alternatives with lupin flour, producing a thin, crispy base with very low net carbs. It’s quick to make and very adaptable—you can top it with tomato and mozzarella for a classic Margherita, add pepperoni, mushrooms, or keep it as a flatbread seasoned with herbs.

If your mozzarella doesn’t melt properly, try a different brand. Some fresh mozzarellas are too moist or have stabilisers that prevent the ideal melt. A dry block mozzarella works best and will give the right stretchy, gooey texture for the dough. I recommend experimenting until you find a brand that melts well in your kitchen.

For toppings, keep macros in mind: cold tomato sauce prevents sogginess, and a light hand with toppings keeps the base crispy. I often split my pizzas—one side traditional Margherita, the other with mushrooms or pepperoni—so everyone gets their favourite.

Enjoy!

Equipment

• Mixing bowl
• Food processor or grater to shred/cube mozzarella
• Microwave or small saucepan for melting cheese
• Parchment paper and a baking tray
• Pizza cutter or sharp knife
• Kitchen scales (recommended for accurate measurements)

Ingredients (serves 4)

• 200 g dry block mozzarella, cubed
• 1 small egg, lightly beaten
• ⅛ tsp fine salt
• 60 g lupin flour
• A little oat fibre for dusting hands if needed

Instructions

1. Preheat the oven to 200°C (static).
2. Lightly beat the egg with a fork, add salt and set aside.
3. Blitz the mozzarella briefly in a food processor or grate it until it becomes fine crumbs, then transfer to a large mixing bowl.
4. Microwave the mozzarella crumbs on full power in short bursts (about 1 minute total, adjusting for microwave strength) until melted and sticky. Alternatively, melt gently in a small saucepan over low heat, stirring to avoid burning.
5. Let the melted cheese cool slightly, then stir in the beaten egg until combined.
6. Add lupin flour and mix with a fork. It will be sticky at first; when it becomes too stiff for a fork, knead with lightly dusted hands until a soft dough forms. Use a small amount of oat fibre on your hands if the dough sticks excessively.
7. Place the dough on a sheet of parchment paper. Flatten it with your palms and press from the center outward while rotating to shape it to your tray size.
8. Transfer the shaped dough (on parchment) to a baking tray lined with fresh parchment. Flatten evenly so the base is thin and uniformly thick. Prick the surface with a fork to prevent bubbling.
9. Bake for 15–17 minutes, or until golden brown and crisp.
10. Remove from the oven and cool briefly. Spread cold tomato sauce and add toppings of choice.
11. Return to the oven for 5–8 minutes to melt toppings before serving.

Notes

• Dusting your hands with a little oat fibre helps with kneading, but don’t overuse it—too much dries the dough.
• Always add cold tomato sauce to a cooled or cooled-ish base to avoid a soggy crust.
• This base also works well as a flavored flatbread; mix herbs or spices into the lupin flour for extra flavour.
• Store leftovers in an airtight container for up to 5 days. Re-crisp in a hot oven before serving.

Nutrition (per quarter)

Serving: 1 quarter | Calories: 173 kcal | Carbohydrates: 2 g | Protein: 6.4 g | Fat: 4 g

If you try this Lupin FatHead pizza base, adjust toppings to suit your macros and enjoy a crispy, low-carb pizza that’s quick to make and delicious to eat.