Soft and Spongy Cinnamon Muffins

Ingredients: 3 tbsp soften butter + 1/4 cup of oil1 ½ cup flour ¾ cup brown sugar 1 ½ tsp baking powder ½ tsp bicarbonate of soda ½ tsp salt1 ½ tsp cinnamon 1 cup milk½ tsp of vanilla essence1…