Second post of the day! Blackcurrant and strawberry jam?

Is it possible?  I do not have enough blackcurrants to do just them.

I did a mixed fruit the other year and because my weight was short, I chopped up a couple of apples and added a 1lb of raisins!!!  Everyone said it tasted lovely!!

But also if I'm a bit short on weight.  I freeze the fruit I've got, then in the autumn buy some plums or something and add them to it.