cream of tartar helps

For drop scones (Scottish), with 1/2 tsp bicarb & 1/2 tsp cr of tartar.  If you wish to use buttermilk or sour milk then halve the cr of tartar!

ORANGE FILLING

2 Tab cornflour (dissolved in a little cold water)
1 Tab butter
juice 1 orange
2 egg yolks, lightly beaten
1c boiling water
juice 1/2 lemon

Put into a saucepan the boiling water, butter and juices. Allow to come to the boil.
Have ready the cornflour paste and stir into the boiling mixture. Add yolks, simmer a few minutes to thicken. Set aside to get cold.