Thanks ladies for all your help. I tried the one with GrapeNuts - but without a recipe and used a full cup and didn't soak them before putting in pie. GrapeNuts taste was very strong plus it soaked up my filling. Tried it with oats, couldn't taste them BUT you could feel the oats. Think I'll try toasting the oats before adding them to my pie and maybe blending them a little. I'll try the pretzels next. I also toasted a cup of coconut and used that and it makes a really good pie.