Crudités with cream cheese and herb dip

Ingredients

• 150g cream cheese
• 4 tbsp crème fraîche
• 1 garlic clove, crushed
• 2 tbsp finely chopped chives, plus extra to serve
• Grated zest and juice of ½ lemon
• Bunch of radishes, trimmed
• 1 small cauliflower, cut into florets
• ½ cucumber, deseeded and cut ?into sticks
• Extra-virgin olive oil (optional)