This should be it ...
You'll need a 8" springform pan, and three or four ripe, juicy pears, peeled, cored, and sliced into sixths or eighths.
Cream a stick of butter with 3/4 cup of sugar and 1 teaspoon vanilla.
Add 2 eggs, one at a time.
Combine one cup of flour, 1 teaspoon baking powder, and 1/2 teaspoon of salt and add to the butter and egg mixture.
Spray the spring form pan with Pam and spread the batter into it. Start pressing pear slices into the batter in a pinwheel pattern, but do cram in as many as you can. The batter will rise and cover the pears anyway. The more pears you use the moister the result will be.
Bake at 350 degrees until a skewer comes out clean, 45 minutes to an hour. When in doubt, underbake!