Grease 6 ramekins with butter, and preheat the oven to 425°. Melt
chocolate chips, butter and soy sauce together in the microwave
for 2 minutes. Remove from microwave and add flour and sugar.
Combine 3 whole eggs with 3 additional egg yolks and vanilla, blending well into the chocolate mixture. Pour into 6 ramekins; place the ramekins on a cookie sheet and bake for 10 minutes. (Loosen the edges with a knife and invert onto dessert plates; the center will be runny.)