Creamy Feta Dressing with Iceberg Wedges

Bahan-bahan (4 porsi)

• 1 iceberg lettuce
• 1/2 cup (packed) crumbled feta (preferably Danish or another soft feta)
• 1/2 cup whole egg mayonnaise
• 1/4 cup plain yoghurt
• 1/2 to 3/4 cup milk ((use milk to adjust consistency))
• Juice of half a lemon
• 1/2 clove garlic (, crushed, or 1 tsp garlic powder)
• 1 tbsp chopped fresh oregano
• Salt and pepper to taste