Summary
The anchovy and butter toast is probably the simplest and most overestimated combination in Spanish gastronomy. In this guide: Why butter and anchovy are perfect together, Ingredients for 4 people, Step-by-step: the perfect toast.
The anchovy and butter toast is probably the simplest and most overestimated combination in Spanish gastronomy. Simple because it has three ingredients. Overestimated because, with mediocre ingredients, the result is disappointing and you don't understand why anyone would put it on a menu. With real ingredients, it's one of the best things you can eat in ten minutes.
This is the recipe we make at Mercat del Ninot when we want to show someone what a good Cantabrian anchovy is. There's no trick: butter and bread amplify, they don't hide. If the anchovy is good, it shows. If it's not, that also shows.
Why butter and anchovy are perfect together
The combination is not coincidental. It has a very specific chemical and sensory logic.
Cured Cantabrian anchovy has three dominant characteristics: intense saltiness, concentrated umami (glutamate and inosinate developed during salting), and a complex polyunsaturated fat profile. Butter has a smooth saturated fat, lactic notes, and no saltiness if it's unsalted butter.
When the two fats coexist in the mouth, this happens: the butterfat acts as a vehicle and amplifier for the anchovy's aromatic compounds, extending the perception of flavor on the palate. At the same time, the lactic protein in the butter moderates the anchovy's saltiness, preventing salt from being the dominant flavor. The result is a flavor experience where the complexity of the anchovy is perceived in more detail and for longer than would be possible if the anchovy were alone.
This explains why anchovy and butter toast works better than the same anchovy on bread with olive oil: the oil competes with the anchovy's fat instead of complementing it. Butter yields the spotlight; oil fights for it.
Ingredients for 4 people
- Bread: 4-8 slices of sourdough bread about 1.5 cm thick, or dense rye bread. Conventional baguette-style bread is acceptable but yields a notably inferior result.
- Butter: 60-80g of good quality unsalted butter (Président, Kerrygold, or any butter with a high fat percentage, minimum 82%). Unsalted is mandatory: the anchovy already provides all the necessary salt.
- Anchovies: 12-16 Cantabrian anchovy fillets in olive oil (3-4 fillets per toast). Size 00 Selection for this recipe; size 0 works but visual presence and flavor are less.
Optional ingredients for variations:
- Maldon sea salt flakes (for the unvaried version, a finishing touch if the anchovy has mild salt)
- Freshly ground black pepper (minimal amount, not dominant)
- A few slices of black truffle or truffle oil (for the truffle variation)
- 2-3 quail eggs (for the egg variation)
- Fresh or pickled chili pepper (for the spicy variation)
Step-by-step: the perfect toast
- Bring butter to room temperature. Take the butter out of the fridge 30-45 minutes before preparing the toasts. It should be at room temperature: soft, but not melted. If it's cold, spreading it on the bread will tear it and won't create the uniform layer we need. If it's melted, it will be absorbed into the bread instead of staying on the surface.
- Take anchovies out of the fridge. At the same time as the butter, take the anchovies out of the refrigerator. Cold anchovy has partially solidified fat, which stiffens the fillet, dulls the flavor, and removes its characteristic shine. 20-30 minutes at room temperature is enough to restore optimal texture.
- Toast the bread. Use a toaster, griddle, or oven broiler function. The goal is to get a crispy crust on the outside while keeping the inside slightly soft. The toasting level should be medium-high: enough for the slice to be rigid and support the weight of the butter and anchovy without softening, but not carbonized. In a toaster: full cycle at level 4/5. On a griddle: 2 minutes per side over medium-high heat.
- Spread the butter. While the toast is still warm, spread a generous layer of soft butter. The correct amount is enough to uniformly cover the surface with a thickness of 2-3mm, without accumulating in the corners. The residual heat from the bread will slightly melt the butter but not eliminate it: a thin, shiny layer will remain. If the bread is cold before spreading, the butter will not adhere well and will detach when bitten.
- Place the anchovies. Three or four fillets per toast, arranged parallel along the length of the slice. Do not overcrowd them: leave a small space between fillets so that the butter is visible and the visual balance is clean. If the fillets have warped in the jar or tin, gently straighten them with your fingertips before placing.
- Serve immediately. Anchovy and butter toast is a dish for immediate consumption. After 5 minutes, the bread loses its crispy texture and the butter is fully absorbed. If you are preparing them for several diners, make them in batches, not all at once.
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Variations: with truffle, with quail egg, with chili pepper
The base toast is perfect as is, but it allows for three variations that elevate it without distorting the original concept.
With black truffle: Add 3-4 very thin slices of fresh black truffle (Tuber melanosporum) over the anchovies just before serving. Alternatively, mix the soft butter with a few drops of truffle oil (very few: it's a dominant ingredient) before spreading. Truffle and anchovy share a deep umami profile and fermented notes, and they enhance each other. The result is a toast with disproportionate flavor intensity compared to its apparent simplicity.
With quail egg: Fry 2-3 quail eggs in very little butter over medium heat, leaving the yolk runny. Place the eggs over the anchovies. When the yolk breaks while eating, it mixes with the butter and further softens the anchovy's saltiness, adding a note of mild fat that completes the ensemble. This is a more substantial variation, more suitable as a main course than an appetizer.
With chili pepper: Add 2-3 thin slices of fresh chili pepper (not very spicy: choose a spiciness of 3/10 on a personal scale) or a strip of pickled chili pepper. The acidity of the pickled chili cuts through the butterfat and refreshes the whole. The mild spice complements the anchovy's saltiness. This variation is a deconstructed gilda on toast, and it works equally well.
What anchovy to use: 00 Selection or standard
For this recipe, size 00 yields a clearly superior result to size 0. The reason is simple: in a three-ingredient toast, the anchovy is the main flavor and texture element, and its visual presence matters as much as its taste.
A size 00 fillet covers a 7-8 cm slice of bread well, has its own visual presence, and its meaty texture noticeably contrasts with the creamy butter. Three well-arranged size 00 fillets make a serious toast. Four size 0 fillets in the same space are visually crowded and lose the dish's elegance.
Our Cantabrian 00 Selection Gourmet anchovies are specifically the product we recommend for this recipe. The size is verified, the oil is extra virgin olive oil, and the flavor profile has the necessary complexity for the toast to be a benchmark dish.
If budget is a factor, size 0 works correctly and makes a good toast. The difference is perceptible but not dramatic if the anchovy is of good quality. What does not work in any case is an anchovy in sunflower oil or of uncertain origin: in such a simple preparation, the mediocrity of the ingredient has nowhere to hide.
Pairing: white wine, txakoli, brut nature cava
Anchovy and butter toast has three characteristics that guide pairing: high saltiness, significant fat, and concentrated umami. The wines that work best are those with high acidity and pronounced minerality, which cleanse the fat with each sip and highlight the anchovy's saline complexity.
Txakoli from the Basque Country (Getariako Txakolina, Bizkaiko Txakolina) is the geographically logical and gastronomically correct pairing. Its pungent acidity, slight natural effervescence, and iodine and citrus notes contrast perfectly with the butter's fat and the anchovy's saltiness. Txakoli poured from a height, with its characteristic small bubbles, is the classic accompaniment to gildas and anchovy toasts on the Basque coast.
An Albariño from Rías Baixas works similarly: high acidity, saline minerality typical of coastal grapes, freshness that cleanses fat. Less traditional than txakoli for this use but equally effective.
Brut nature cava is the sparkling alternative. The cava's bubbles clean the butterfat with each sip, and the acidity of the zero dosage (brut nature, without expedition liqueur) does not add sweetness that competes with the anchovy's saltiness. It is the most elegant option for a formal presentation or tasting.
What doesn't work: red wines with tannins (tannin and anchovy fat create an unpleasant metallic sensation), very sweet white wines (the sweet-salty contrast can work in theory but is a risky pairing for this specific preparation), and very hoppy beer (the bitterness of hops clashes with the anchovy's umami).
Frequently asked questions
Can the toast be prepared with margarine instead of butter?
We do not recommend margarine for this recipe. Margarine has a different fat profile, artificial flavor notes, and a mouthfeel that does not complement anchovy in the same way as butter. The result is a toast that tastes like generic fat, not the butter-anchovy balance that makes the dish. If the reason is lactose intolerance, there are clarified butters (ghee) that work reasonably well as a substitute.
Should the butter be salted or unsalted?
Unsalted, always. Cantabrian anchovy already provides all the necessary saltiness and, in most cases, more than enough. Using salted butter saturates the dish with salt and makes it impossible to perceive the nuances of the anchovy's flavor. Unsalted butter provides fat and lactic notes without interfering with the saline balance.
What kind of bread works best for this toast?
Sourdough bread with mild acidity is the best support: it has enough structure to hold the weight of the ingredients without softening, a dense crumb that doesn't absorb all the butter in seconds, and a crust that keeps its crispness longer. Dense rye bread is the second option, with a more pronounced flavor profile that complements the anchovy's intensity well. Conventional baguette bread works but softens quickly. Avoid very spongy or open-crumb breads: they absorb butter like a sponge and the toast becomes pasty.
Can it be prepared in advance?
Not to be served with the best result. The toast loses its crispy texture within a few minutes once buttered. If you need to prepare it in advance for an event, you can toast the bread, bring the butter to room temperature, and have the anchovies at room temperature separately, then assemble at the last moment before serving. The assembly process takes no more than 2 minutes.
How many toasts can be eaten as an appetizer?
As an appetizer before a meal, one or two toasts per person is the correct amount. As a light meal or brunch, three or four. The butter + anchovy combination is calorically dense and filling, and the flavor is very intense: more than four toasts in a row saturates the palate.
Ready to prepare the perfect toast? Start with the ingredient that matters most: visit our selection of Cantabrian anchovies at Bacalalo.com and choose the ones that will star in your next toast.
