Boil a full kettle. 

Meanwhile, trim and discard the root and dark green leafy part from the leek. Halve lengthways, then thinly slice.

Peel and grate the garlic (or use a garlic press). Halve the lemon (see ingredients for amount).

Pour the boiled water for the stock (see pantry for amount) into a large measuring jug. Stir in the vegetable stock paste - this is your stock.

Heat a drizzle of oil in a large, wide-bottomed saucepan on medium-high heat.

Once hot, add the leek, season with salt and pepper, then cook, stirring occasionally, until softened, 4-6 mins.

Stir in the garlic and Cajun spice mix (add less if you'd prefer things milder) and cook for 1 min, then stir in the risotto rice, stir and cook until the edges of the rice are translucent, 1-2 mins.

Pour in a third of the stock and stir to combine. Bring to the boil and simmer until absorbed, then repeat with the remaining stock, a third at a time. Stir occasionally.

The total cooking time should take 20-25 mins and your risotto is done when the rice is ‘al dente’ - cooked through but with a tiny bit of firmness left in the middle.

Once the risotto has 5 mins cook time remaining, drain the prawns.

Stir the prawns into the risotto and simmer for 5-6 mins. IMPORTANT: Wash your hands and equipment after handling raw prawns. They're cooked when pink on the outside and opaque in the middle.

Remove the risotto from the heat, then stir through the hard Italian style cheese and a knob of butter (if you have any) until melted.

Stir vigorously until well combined, then finish with a squeeze of lemon juice.

Taste and season with salt, pepper and more lemon juice if needed.

Share the prawn risotto between your bowls. 

Scatter over the crispy onions to finish.

Enjoy!