Preheat oven to 400F. Line a baking sheet with parchment paper.
Whisk together the flour, baking powder, & salt.
Mix butter, yogurt, and grated cheese.
Add dry ingredients.
Add olives and walnuts.
Pat put the dough out on a lightly floured surface.
Use a cutter to cut out shapes.
Transfer to the baking sheet. Brush with cream.
Bake for 15 minutes.
Transfer to a cooling rack.
Let cool 10 minutes before serving