Microwave mug: Cheesy chive and pea muffin

Name: Microwave mug: Cheesy chive and pea muffin
Cuisine: European, British
Ingredients: 1 egg, beaten; 1 heaped tbsp natural low-fat yogurt; good pinch white pepper; 10g half-fat Cheddar, grated; 5g Parmesan, finely grated; 1 spring onion, finely chopped; 40g frozen peas, defrosted; 1 heaped tbsp wholemeal flour; third tsp baking powder or bicarbonate of soda; 1 heaped tsp chopped chives (save a few to garnish); half tsp sunflower oil; pinch paprika