Chive and napa cabbage salad

Ingredients

• 1 English cucumber
• 1/3 cup apple cider vinegar
• 1/3 cup canola oil
• 1 tbsp lemon zest
• 2 1/2 tsp sesame oil
• 2 1/2 tsp honey
• 3/4 tsp salt
• 1 garlic clove , minced
• 6 cups shredded napa cabbage
• 1 1/2 cups chives , cut into 1/2-in. pieces
• 1 tbsp toasted black sesame seeds