Help with muffin recipe, flour dilemma

[Norfolkbumpkin]

I am using the Nigella Lawson recipe for blueberry muffins which requires 200g of plain flour along with the bicarb and baking powder. I have just discovered I only have 100g of plain flour left, but I have got self raising. Can I use that? and if so, should I then adjust the quantities of the other bits? Help please, I'm a bit of a novice when it comes to baking!

yes, just add another 1.5 tsp of baking powder

sorry, just re read this - I thought you meant you were meant to use SR but only had 100g and were adding 100g plain (in which case add 1.5tsp baking powder)

if not, scrap that advice! Just use the SR but no bakin gpowder. how much bicarb does she say to use?

She says to use half a teaspoon of bicarb and two teaspoons of baking poweder based on 200g of plain flour. I was going to use half plain, half self raising. So should I use all SR instead?

Yes, just use SR.

Sorry, hit reply too soon.

Just use SR or use 100gm SR and 100gm plain but halve the bicarb and baking powder.

Great, thanks ladies for your help.