Heat oven to 375 degrees F.
Spray molds lightly with baking spray. Set aside.
In a small bowl, sift together flour and baking powder. Set aside.
In a large bowl, whisk together eggs, egg yolk, granulated sugar, brown sugar, and honey.
With a rubber spatula, fold in flour a little at a time.
When flour is completely incorporated, fold in butter.
Continue folding gently until incorporated and batter is smooth.
Spoon 1 Tablespoon batter into each cavity of the prepared molds.
Set on a sheet pan.
Bake for 7-8 minutes, until cake springs back when lightly touched.
Cool in pans for 3-4 minutes.
Turn out.
Lightly sift powdered sugar over cakes.