Crocchette di Funghi Porcini, Fontina e Tartufo Nero (Italian Porcini Mushroom Croquettes with Fontina and Black Truffle)

22 hours ago
6 min read

Story of the Dish

Porcini, Fontina, and black truffle are naturally luxurious ingredients, but the purpose of this croquette is not excess. The technique is designed so each element has a clear role: porcini provide forest aroma and umami, Fontina gives a soft melting center, and black truffle is used at the end where its fragrance remains most expressive.

The filling is based on well browned mushrooms rather than a wet mushroom puree. Water is the enemy of crisp frying, so porcini and any supporting mushrooms must be cooked until their released moisture has evaporated and the pan begins to brown again. That concentration creates a filling that tastes deeper and holds shape more reliably.

Fontina is particularly suitable because it melts smoothly without becoming aggressively oily. The cheese should be diced small and folded into a cooled filling so it remains distributed rather than melting before shaping. Truffle is added with restraint; too much can flatten the complexity of the porcini rather than enhance it.

Recipe Information

Difficulty: Intermediate to Advanced

Region/Origin: Northern Italian inspired

Servings: 6, about 18 croquettes

Preparation Time: 50 minutes

Cooking Time: 35 minutes

Resting Time: 40 minutes chilling

Total Time: About 2 hours 5 minutes

Ingredients

1 oz dried porcini mushrooms, 1 cup hot water; 12 oz cremini or mixed mushrooms finely chopped; 2 tbsp unsalted butter; 1 tbsp extra virgin olive oil; 1 small shallot minced; 1 garlic clove minced; 1/2 cup dry white wine; 1 cup cooked and riced potato, cooled; 5 oz Fontina cut into small dice; 1 large egg yolk; 1/2 cup fine breadcrumbs; 1 tbsp chopped parsley; 1 tsp fresh thyme leaves; 1/2 tsp fine sea salt; 1/2 tsp black pepper; 1 to 2 tsp finely grated fresh black truffle or high quality preserved truffle, plus extra for finishing if available.

For breading: 1 cup flour, 2 beaten eggs, 2 cups fine breadcrumbs. Neutral oil for frying.

Preparation

Soak the dried porcini in hot water for 20 minutes. Lift them out, squeeze gently, and chop finely. Strain the soaking liquid through a coffee filter or fine cloth to remove grit and reserve 1/2 cup.

Heat butter and olive oil in a wide skillet. Add shallot and cook until translucent. Add fresh mushrooms and a pinch of salt. Cook over medium high heat until they release their liquid, the liquid evaporates, and the mushrooms begin to brown. Add garlic, thyme, and soaked porcini.

Deglaze with white wine and reduce almost completely. Add 1/2 cup strained porcini liquid and reduce again until the mixture is moist but no liquid pools in the pan. Cool completely.

Combine the mushroom mixture with riced potato, egg yolk, breadcrumbs, parsley, salt, pepper, truffle, and Fontina dice. Chill 30 minutes. Shape into 18 compact cylinders or balls, making sure exposed cheese is pushed beneath the surface.

Bread in flour, beaten egg, and breadcrumbs. Chill 10 minutes. Fry at 350°F in small batches until deeply golden, 2 to 3 minutes. Drain on a rack. Finish with a very small amount of fresh truffle at service if available.

Professional Technique

Mushrooms must be cooked in a wide pan because crowding traps steam. The goal is to move through three phases: water release, evaporation, and browning. Stopping before the browning phase leaves the filling watery and one dimensional.

Porcini soaking liquid is valuable but can contain sand. Filtering it is mandatory. Reduce it almost completely so its flavor remains without introducing excess water.

Fontina should be cold when diced and folded into a completely cool filling. If the mushroom mixture is warm, the cheese begins melting prematurely and becomes difficult to distribute evenly.

Fresh truffle should never be aggressively cooked. Heat destroys much of its volatile aroma. A little inside the cooled filling and a final shaving over the hot croquette preserve far more fragrance than simmering it in the mushroom base.

Chef Tips

If fresh porcini are available, use them for part of the fresh mushroom quantity but still include a small amount of dried porcini for depth.

A neutral frying oil allows mushroom and truffle aromas to remain clean.

Keep croquettes modest in size. Large ones brown outside before the Fontina center heats properly.

Serve on a warm plate, not a hot plate. Excessive plate heat continues cooking the cheese and accelerates truffle aroma loss.

Common Mistakes

Failing to cook away mushroom moisture causes weak, soft croquettes.

Using unfiltered porcini liquid can introduce grit.

Adding Fontina while the filling is warm makes shaping difficult.

Using truffle oil as the dominant flavor often creates an artificial, one note aroma.

Frying at an unstable temperature leads either to greasy breading or ruptured cheese centers.

Wine Pairing

Barbera d’Alba: bright acidity and moderate tannin work with mushrooms and melted Fontina.

Nebbiolo Langhe: earthy red fruit and savory structure echo porcini and truffle without the weight of mature Barolo.

Valle d’Aosta Petite Arvine: mineral freshness contrasts the fried crust and complements Fontina.

Gavi: clean citrus and almond notes provide a lighter pairing when truffle is used sparingly.

Franciacorta Satèn: creamy bubbles and refined acidity match the soft cheese center while cleansing the palate.

Storage and Reheating

Refrigerate cooked croquettes up to 3 days. Reheat on a rack in a 400°F oven for 8 to 10 minutes.

Breaded uncooked croquettes may be refrigerated up to 8 hours. For longer storage, freeze individually and transfer to a bag once firm.

Fry frozen croquettes at about 340°F, allowing extra time for the Fontina center to heat without overbrowning the exterior.

Do not microwave if you want to preserve the crisp crust and distinct mushroom aroma.

Nutrition per Serving

Calories: 410

Protein: 15 g

Carbohydrates: 39 g

Fat: 21 g

Saturated Fat: 8 g

Fiber: 4 g

Sugars: 4 g

Sodium: 590 mg

Cholesterol: 105 mg

Final Professional Control

Professional kitchen control requires consistency from batch to batch. Before frying or baking the final portion, cook one test piece and evaluate seasoning, moisture, structure, internal temperature, and exterior color. Correct the mixture before proceeding rather than trying to compensate during service. Keep shaped portions uniform so heat reaches the center at the same rate. Work in small batches, allow equipment to recover temperature between batches, and use a rack for draining or cooling so steam can escape instead of softening the surface. Ingredient temperature also matters: cold fillings are easier to shape and seal, while room temperature cake ingredients emulsify more evenly. These small controls are what separate a reliable professional result from a recipe that succeeds only occasionally.

Texture and Service Control

The porcini filling should taste concentrated before breading because frying does not intensify mushroom flavor; it mainly develops the crust. Taste the cooled mixture before shaping and adjust salt carefully, remembering that Fontina contributes additional seasoning. The truffle should remain an aromatic top note rather than the only recognizable flavor.

A properly fried croquette will show a molten but not separated Fontina center. If cheese oil leaks into the filling, the croquette was fried too long or at a temperature that allowed the center to overheat before the crust finished. Smaller, uniform portions make this easier to control and produce a more elegant bite.

For service, let the fried croquettes rest 90 seconds to 2 minutes. Finish with fresh truffle only after this rest, when the surface is still warm enough to release aroma but not so hot that volatile compounds disappear immediately. A few grains of flaky salt can sharpen the mushroom profile, but use them sparingly because Fontina and the filling are already seasoned.