Cream Cheese Cheddar Pound Cupcake

It seems like my baking has slowed down in the recent weeks. Some of the ingredients were half used since the last bake. So I decided to use up those remaining ingredients. This was what I made with the remaining ingredients - Double Cheese-Cream & Cheddar Pound (Cup)Cake. The cupcake was dense but moist and fluffy.
Recipe for Double Cheese Pound Cake, modified from Joy of Baking.
(Makes 32 regular cupcakes)

Ingredients:
260g Plain flour
2/3 tsp Baking powder
1/4 tsp Baking soda
226g Salted butter, room temperature
150g Cream cheese, room temperature
250g Caster sugar
120g Sour cream (optional)
4 Whole eggs
1 tbsp Vanilla Extract
150g Mixed shredded cheddar cheese (optional)

Method:
1. Preheat oven to 180C.
2. In a large bowl, sift together the flour, baking powder and baking soda. 
3. In a large mixing bowl with k-beater, beat the butter, cream cheese and sugar until light and fluffy.
4. Add vanilla extract and sour cream, beat until incorporated.
5. Add the beaten eggs, one at a time and mix well. Scrap down the sides of the bowl after each addition.
6. Add the flour mixture in three additions. Mix till just incorporated.
7. Finally, using your spatula, fold in the shredded cheese and mix till just incorporated.
8. Scoop the batter into the prepared muffin tin with cupcake papers.
 
9. Bake for 18-19mins or until browned.
10. Remove from the oven and let it cool before serving.