I have a wonderful cinnamon streusel muffin recipe! I would like to add frozen blueberries to the mix. I am wondering what adjustments to make in order to add these. The streusel is not a topping, but is gently folded into mix before baking. The recipe is a basic buttermilk sugar egg flour baking powder muffin mix with basic butter flour cinnamon and sugar streusel. Maybe i'd add more flour.....a bit of lemon juice....???? I'd like some professional advice PLEASE!!!!!
much love many thanks!!!