Pizza dough is a constraint we impose on ourselves out of pure habit. Potatoes make an infinitely more interesting base—tender, flavorful, and ready without a single hour of rising. This recipe belongs in every repertoire.
Imagine the tray coming out of the oven. The edges of the smashed potatoes have turned a golden hue like light caramel, crispy where they touch the parchment paper. In the center, the Gorgonzola has melted into creamy ivory puddles that mingle with the white strands of mozzarella. The mushrooms have reduced, concentrating their flavor, and the scent of fresh rosemary wafts through the entire kitchen the moment you open the door. A slice holds in your hand without collapsing.
Why you’ll love this recipe
Ingredient Notes
Everything you need for this crustless pizza: potatoes, button mushrooms, Gorgonzola, mozzarella, and a handful of herbs.
- Potatoes : Choose floury varieties—Bintje, Agria, or Monalisa work very well. They smash easily and absorb less water than waxy varieties. Waxy varieties resist and form lumps. Not ideal here.
- Gorgonzola : Choose Gorgonzola dolce, the sweet one. Piccante is too sharp for this recipe and will overpower the mushrooms. 80g might seem like little—but this cheese has a powerful taste, that’s intentional. Crumble it by hand into large uneven chunks so every bite is different.
- Mozzarella : Buy sliced and drained mozzarella, not the ball in its water. If you use the ball, you must press it in a clean towel for at least 20 minutes, otherwise it releases too much liquid and soaks the base.
- Button Mushrooms : Basic supermarket button mushrooms are more than enough. The key: slice them thinly. Too thick, and they won’t cook enough in 10 minutes in the oven and will stay raw in the center.
- Rosemary : One single sprig, no more. And most importantly, add it after cooking, not before—the oven heat burns the leaves and makes them lose all their aroma in minutes. Fresh, it lingers on the residual heat and perfumes without bitterness.
Why I cook my potatoes whole, and no other way
It all starts with whole potatoes in a pot of cold salted water. Starting cold is essential: it allows for uniform cooking from the center to the skin, without the outside falling apart while the inside still resists. 35 to 40 minutes over low heat. It’s long, but that’s when you prepare the sauce and cut your toppings—nothing happens in the right order by accident. To check for doneness, prick with a knife tip: it should enter without any resistance, like modeling clay. When you drain them, let them rest for a minute in the empty pot over very low heat—residual steam evaporates and the mash will be much less sticky.
The tomato sauce that doesn’t need to be complicated
In a small saucepan, tomato pulp, a minced garlic clove, a pinch of oregano, and a drizzle of olive oil. Fifteen minutes over low heat, timer in hand. Nothing else is needed. The pulp will reduce slightly, thicken, and take on a slightly deeper brick-red color. The scent of garlic infusing into the olive oil from the third minute—that’s the signal you’re on the right track. Salt, pepper. It’s ready.
The smash: the part everyone rushes
The hot potatoes are spread on a tray lined with parchment paper, and that’s when you smash them. With the bottom of a glass, a fork, the palm of your hand—the tool doesn’t matter. What counts is the thickness: not too thin, or it will dry out and break, nor too thick, or the base won’t get crispy. Aim for 1 to 1.5 cm. The texture under the hand is strange at first—spongy, hot, slightly sticky—but it firms up in the oven. Spread the sauce, distribute the raw red onions and thinly sliced mushrooms, arrange the drained mozzarella slices. Crumble the Gorgonzola over the top in large irregular pieces. Bake at 220°C.
Ten minutes, and everything changes
The oven does the rest. In 10 to 15 minutes at 220°C, the base browns on the edges, the two cheeses merge into a creamy layer that bubbles slightly, and the mushrooms concentrate as they lose their water. You know it’s ready when the edges have that light caramel hue and you hear a slight sizzle when placing your ear near the tray. Sprinkle with fresh rosemary upon leaving the oven, not before. Serve immediately—this pizza cools quickly and the base loses its crispness in five minutes.
Tips & Tricks
- Don’t overload the toppings: mushrooms and onions release water during cooking. Too many toppings and you’ll drown the base. A thin layer of each is enough—the base should remain visible in places.
- The mozzarella must be really well-drained before going on the pizza. If in doubt, place the slices on paper towels for 5 minutes. This detail changes everything in the final texture.
- If you want an even crispier base, brush it with a drizzle of olive oil before spreading the sauce. The oil creates a slight barrier that prevents the sauce from softening the potatoes.
What variety of potatoes should I use so the base holds together well?
Favor floury varieties like Bintje, Agria, or Monalisa. They smash easily into a homogeneous paste and absorb less water than waxy varieties, which form lumps and give a base that crumbles when cut.
I don’t like Gorgonzola. What can I replace it with?
Gorgonzola dolce is the mildest of its family—if you really don’t like blue cheeses, you can replace it with crumbled feta (for a drier, saltier result) or fresh goat cheese (creamier, less powerful). Mozzarella alone also works, but the pizza loses much of its character.
Can I prepare the base in advance?
You can cook and smash the potatoes a few hours in advance, then cover the tray and refrigerate. Take it out 15 minutes before assembling so it returns to room temperature—a cold base doesn’t cook uniformly in the oven.
My base is soggy under the toppings. What happened?
There are two likely culprits: mozzarella that wasn’t drained enough, or too much topping. The mozzarella should rest on paper towels before use. And the mushrooms must be in a thin layer—they release a lot of water during cooking if you add too many.
How to store leftovers and reheat them?
Slices can be stored in the refrigerator in an airtight container for up to 2 days. To reheat, place them for 8 to 10 minutes in the oven at 180°C on a tray—never in the microwave, which will soften the base and make the cheeses rubbery.
Can I vary the toppings?
Absolutely. Grilled peppers, black olives, arugula added after cooking, or halved cherry tomatoes work very well. Always keep mozzarella as the cheese base—it binds the topping—and add a character cheese like Gorgonzola for depth.
Crustless Mushroom and Gorgonzola Pizza with Potato Base
Italian
Main course
A crustless pizza to prepare: smashed potatoes form a melt-in-the-mouth yet crispy base, topped with homemade tomato sauce, mushrooms, and melted mozzarella and Gorgonzola.
Ingredients
- 500g floury potatoes (Bintje or Agria)
- 1 tbsp olive oil
- 100g tomato pulp
- 1 garlic clove, finely minced
- 1 pinch dried oregano
- 150g button mushrooms, finely sliced
- ¼ red onion, finely sliced
- 80g Gorgonzola dolce, crumbled
- 100g sliced mozzarella, well drained
- 1 sprig fresh rosemary
- salt and freshly ground black pepper
Instructions
- 1Place unpeeled whole potatoes in a pot and cover with cold salted water. Bring to a boil, cover, and cook over low heat for 35 to 40 minutes until a knife passes through without resistance.
- 2Meanwhile, heat the olive oil in a small saucepan. Add the tomato pulp, minced garlic, oregano, salt, and pepper. Simmer over low heat for 15 minutes, stirring occasionally.
- 3Finely slice the mushrooms and red onion. Place the mozzarella slices on paper towels to drain well. Preheat the oven to 220°C.
- 4Drain the potatoes and let them dry for 1 minute in the empty pot over very low heat. Arrange them on a tray lined with parchment paper.
- 5Smash the potatoes with the bottom of a glass or a fork to form a uniform base about 1 to 1.5 cm thick.
- 6Spread the tomato sauce over the base. Distribute the red onions and sliced mushrooms in a thin layer.
- 7Arrange the drained mozzarella slices over the garnish. Crumble the Gorgonzola by hand in large irregular pieces over the top.
- 8Bake for 10 to 15 minutes until the edges are golden like light caramel and the cheeses are melted and slightly browned.
- 9Remove from the oven, sprinkle with fresh rosemary leaves, and serve immediately.
Notes
• The base can be prepared a few hours in advance: smash the potatoes on the tray, cover, and refrigerate. Take out 15 minutes before assembling and baking.
• Leftovers keep for 2 days in the refrigerator. Reheat in the oven at 180°C for 8 to 10 minutes—never in the microwave to preserve the base’s crispness.
• Variation: add a few fresh arugula leaves or halved cherry tomatoes right after the oven, for a tangy touch that contrasts with the richness of the cheeses.
Nutrition Facts (per serving, estimated)
| 285 kcalCalories | 12gProtein | 26gCarbs | 14gFat |
