Gazpacho Smoothie with Wild Garlic

Name: Gazpacho Smoothie with Wild Garlic
Ingredients: 150 g cucumber (about a third of a whole one) (roughly chopped); 80 g tomatoes (about 10 cherry tomatoes) (roughly chopped); Half medium red pepper (roughly chopped); Half small red onion (roughly chopped); 1 large handful wild garlic (roughly chopped (see Recipe Notes for alternatives)); 2 tbsp olive oil; 1-2 tbsp red wine vinegar or sherry vinegar; salt (to taste); black pepper (to taste); 1 pinch dried chilli flakes (optional); ice cubes; celery sticks to serve (optional)