It's a winner! It took a blue ribbon at the NM State Fair pie contest in 2013. Plus, even better, it can be made with frozen fruit any time of the year. Plus it has a beautiful color and deep flavor!
Pastry for double crust 9” pie (deep dish)
5 c. fresh rhubarb, cut into 1/2” pieces (or frozen cut rhubarb, defrosted)
3 c. frozen raspberries, defrosted (retain the juices)
1 1/2 c. sugar, divided
2 T. tapioca
2T.. flour -- if needed. See "Baker's Notes" below
Dash salt
2 T. butter
Optional glaze: 1/2 egg, beaten, whisked with 1/4 c. half and half
This is similar to another rhubarb raspberry recipe here on Pie Pals; this one features a higher ratio of rhubarb to raspberry. Given the fact that it's a deep dish pie, I think you can reasonably serve 10 with it...but maybe only 7, depending on the rhubarb lovers at the table!
The ingredient list includes 2T. flour -- if needed. I have found that, depending on how watery the raspberries are after defrosting, I may not need the flour and that the tapioca is sufficient. So, my suggestion is that if the rapsberries have a lot of juice when they are defrosted, then add the 2T. flour. If they're wet and there's a little juice, then the tapioca should do the trick.