Condensed Milk Muffins – a delicious recipe with Bring the butter, egg, condensed milk and milk to room temperature., Preheat the oven to 180 degrees C. Combine the flour and baking powder and sift., Mix the butter in a bowl., Add sugar, condensed milk, beaten egg and milk in that order, mixing with each addition., Use a double boiler if you are having trouble mixing it., Add the sifted dry ingredients and cut in until the batter is no longer floury.. Easy to follow and perfect for any occasion.