Heat the milk. Stir in poppy seeds and let soak. Peel mango, cut fruit away from pit, and dice. Combine flour and baking powder.
Preheat the oven to 350°F. Grease muffin tin and place in the refrigerator. Whisk together eggs, sugar, oil, yogurt, and orange marmalade. Add poppy seeds and diced mango. Beat in flour mixture.
Spoon batter into muffin cups and bake in the oven (middle rack) for 15-20 minutes until golden brown. Leave in the tin for 5 minutes, remove, and cool. If desired, first spread with a little marmalade.
Serve with : Orange cream made by combining 7 oz cream, 2 tbs orange syrup and (See how to make orange cream: Toppings for Muffins) 2 tsp grated orange peel, and beat until stiff.