Cut the white part of <quantity>1</quantity> leek into medium pieces

Remove the leaves and cut <quantity>1</quantity> large celery stalk into medium pieces

Peel and cut <quantity>1</quantity> carrot into medium pieces

Cut <quantity>1</quantity> onion into medium pieces

Cut <quantity>1</quantity> tomato into large pieces

Add vegetable oil to taste to a preheated pot over medium heat. Add <quantity>500<unit>g</unit></quantity> of shrimp shells and heads

Stir until the shells and heads turn into an orange color and start do brown, adding more vegetable oil if necessary

Add <quantity>2<unit>tbsp</unit></quantity> of tomato paste and stir to combine

Add <quantity>1<unit>cup</unit></quantity> of white wine and stir to evaporate the alcohol

Add <quantity>4</quantity> black peppercorns and the chopped vegetables

Add <quantity>4<unit>cups</unit></quantity> of water and bring to a boil. Reduce the heat and let it simmer for 30m to extract the flavors

Remove from the heat and strain it through a fine mesh sieve. The shrimp broth is ready

Enjoy!