Molten Chocolate Lava Cake



6 oz chocolate chips or chopped chocolate (I like to use bittersweet chocolate, about 60%
5 oz (10 TBSP) unsalted butter, cut into pieces
3 whole large eggs
3 egg yolks
1 1/2 cups powdered sugar, lightly spooned into measuring cups and leveled off
pinch of salt
1/2 cup all-purpose flour