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Tuna and Tomato Pasta

💪 If you exercise

Serves 2 · About 25 min
Tomato sauce spaghetti made with canned tomatoes and canned tuna, so you can make it anytime. Simmering the sauce down well makes it less sour and helps it cling to the noodles.

① Boil water and cut the onion→② Simmer the tomato sauce→③ Boil the spaghetti→④ Mix pasta and sauce

What to buy

Vegetables & canned goods

Dry pasta & dairy

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How to make it

1

Boil water and cut the onion

No big piecesAbout 5 minCan lid edge is sharp
High heat (for the water)About 5 min
How to tell it's doneThe onion is finely chopped, with no big pieces left.
Be carefulThe edge of a can lid is as sharp as a knife. Don't touch the opened lid with your hands; push it into the can and throw it away.
2

Simmer the tomato sauce

Bottom shows 1–2 secSplatters: stay backSimmer about 8 min
Medium → Medium-low heatAbout 11 min
How to tell it's doneIt's thick enough that when you drag a wooden spatula across the bottom of the pan, the sauce parts and you can see the bottom for 1–2 seconds.
Be carefulThe sauce spatters as it simmers down. Keep your face away, and lower the heat a little when stirring.
Be carefulIf the sauce is ready first, turn off the heat and wait.
3

Boil the spaghetti

No hard centerTime on the packageSave 4 tbsp water
Medium heatTime on the package
How to tell it's doneEat 1 strand: the center is not hard.
4

Mix pasta and sauce

All red, no white pastaToss 1 min2 tbsp pasta water
Medium heatAbout 1 min
ReadyNo white noodles are left; it's all tomato red.

📚 Learn more about this dish

🥬 Ingredient guide

If it didn't work out

It's sourIt didn't simmer down long enough in step 2. Simmer 2–3 more minutes until thick. If it's still sour, add a pinch of sugar.
The sauce is watery, and red liquid pools on the plateIt didn't simmer down enough in step 2. Next time simmer it down until you can see the bottom when you drag a wooden spatula across, then add the noodles.
The sauce burned on the bottomThe heat was too high, or you didn't stir. Don't scrape the burnt part; use only the top. Next time use medium-low heat and stir from the bottom now and then.
The flavor is weakNot enough salt in the pasta water. This time, add salt a pinch at a time. Next time measure 1 tbsp salt properly.
The noodles stick together in clumpsIt took too long to mix with the sauce after boiling. Next time make the sauce first and mix as soon as the pasta is boiled.

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