Mexican Beef Lettuce Cups

We've skipped spring and gone straight to summer! So I've been making loads of salad inspired dishes like this one.

Mexican Beef Lettuce Cups
Serves 4 - 6

Ingredients:

For the beef:
500 g beef sirloin
salt and freshly ground black pepper, to taste
10 ml (2 t) ground cumin
10 ml (2 t) ground coriander
15 ml (1 T) olive oil

Dressing:
250 ml (1 cup) sour cream
3 ml (½ t) garlic, crushed
2 red chillies, thinly sliced (seeds removed for a milder version)
30 ml (2 T) lime or lemon juice
15 ml (1 T) Huletts Castor Sugar
salt and freshly ground black pepper

To serve:
8-10 baby gem lettuce leaves, washed and trimmed
1 avocado, peeled and sliced
1 red onion, finely sliced
coriander leaves, to garnish

Method:

Beef:
Allow the beef to rest at room temperature for ± 20 minutes.
Mix together the salt, pepper, cumin, coriander and oil; rub into the beef.
Heat a griddle pan and fry the beef for 2-3 minutes (for medium rare) on each side without turning, set aside to rest for 5 minutes and slice thinly.

Dressing: 

Whisk all the ingredients together, until smooth and season to taste.

To serve: 

Place a dollop of dressing into each lettuce cup, top with the beef slices, avocado and red onion. Garnish with coriander.