I used a store bought crust due to my lack of kitchen space
for the cheese layer
1 8oz pkg mascarpone cheese
a squeeze of lemon juice
for the berry layer
2 pints blueberries
2 deep dish pie crusts or make your own.
mix mascarpone, eggs, cornstarch (i eyeballed this), sugar, vanilla and lemon juice in a bowl, set aside
mix blueberries and sugar in another bowl.
spread cheese mixture atop pie crust. add blueberries. crumble crackers atop, if using ritz sprinkle a bit of sugar. dot with butter. cover with other dough.
bake at 300 degrees for an hour then raise temperature and bake till crust is browned to your liking.