Remove the outer leaves from the Brussels sprouts and discard, then rinse the sprouts. Add to a pan of boiling water and bring to a simmer for 8 minutes until tender. Drain completely.
Step 2
Whilst the sprouts are cooking, thinly slice the red onion, and crush the garlic. Heat the olive oil in a skillet over a medium heat. Add the onion, garlic, pancetta, lemon zest and thyme leaves and cook for 3-4 minutes until the onion is tender and the pancetta starts to brown.
Step 3
Slice the cooked sprouts in half and add to the skillet, stir well to combine.
Step 4
Cook for a further 5-6 minutes until the sprouts are golden and the pancetta is cooked through.