Cumin beef and cucumber salad

Name: Cumin beef and cucumber salad
Ingredients: 1 tsp cumin seeds; 1 tsp Sichuan peppercorns; 600g/1lb 5oz flank, hangar or bavette steak, sliced into thin strips; 1 tsp bicarbonate of soda; 3 tbsp soy sauce; 1 tbsp Shaoxing rice wine (optional); 1 tbsp brown sugar; ½ tsp salt; 3 tbsp sunflower oil; 5 garlic cloves, grated; 1 piece ginger (approx. 5cm/2in), peeled and grated; 1 onion, thinly sliced; 2 red peppers, thinly sliced; 1 tsp dried chilli flakes; 1 tbsp honey; rice, to serve; 1 cucumber; 1 garlic clove, grated; 1 tsp chilli oil or chilli flakes; 2 tbsp rice wine vinegar; 2 tbsp sesame seeds, toasted