I’ve always wanted to try a solar oven; so I’ll save your tip.
(I have a FR acquaintance who apparently enjoys gardening in the altogether. But his property is isolated enough that nobody can see him..:-)
DRY ING Mix/set aside: 2 c cake flour or 1 5/8 c a/p flour, tea b/powder, 1/4 tea salt.
CRUMBLE Mix/set aside: 1/2 c ea br/sugar, nuts, bit cinnamon.
BATTER Cream cup butter, 2 c sugar; add 2 eggs. Fold in cup sour cream, 1/2 tsp vanilla. Add dry ing;
fold in 1/2 c blueberries. Pour 1/3 into greased/floured tube or Bundt. Add 1/2 crumble then 1/3 batter; repeat.
Swirl gently with spatula. Bake 350 deg 55-60 min. Cool in pan. Remove to plate; sift conf over top.
SERVE w/ individual crocks of creamery butter.
Oh my, please, no names!