Heat the oven to 375F.
Grease the pan with butter, then layer the pan with sliced pears.
Beat the butter and sugar. Next, add and combine the flours and salt until fluffy. Add the eggs and egg yolk and mix until all combined.
Spoon the frangipane mixture on top of the pears, and spread evenly over the top.
Bake for 35 minutes or until the top is golden brown and a toothpick comes out clean.