Peanut Butter and Cadburys Dairy Milk Caramel Muffins

I have experimented with Muffin recipes for a while now as most of them turn out to chewy and heavy and dont rise enough for my liking. Nearly all the recipies i found use plain flour. I have ditched this in favour of self raising and baking powder and i think it produces a much lighter rather than stodgy muffin
250g Self Raising
85g Golden Caster Sugar
1 tbsp Baking Powder
5 tbsp Crunchy Peanut Butter
1 tbsp Soft Butter
60g butter melted
1 large egg
175ml Milk
200g Bar of Cadbury Dairy Milk Caramel roughly chopped up

Sift flour and baking powder into mixing bowl and add peanut butter and tbsp butter. Mix into breadcrumbs. Add the melted butter, milk and egg and stir into thick batter. Add the chopped up chocolate and stir. Spoon into large muffin cases this will make approx 10 depending on how big you want them!
Bake at 200 for 20-25 mins (check as you go as the caramel will burn if it bubbles to the top. I dont have a photo of these yet but they are by far the best muffins i have made. You can substitute the caramel chocolate for any other type really. Another alternative is to omit the chocoalte and use large dollops of nuttella in the middle of the individual muffins (half fill the cases, add a large blob of nutella, cover with more muffin mix)
For a plain muffin omit the peanut butter and use butter instead then add any other ingredient you fancy.