Kosher food?

Question

what makes a food kosher?

Answer 1

blessed by the rabbi or made in a place blessed by the rabbi

Answer 2

the kitchen and all of the utensils as well as the food all have to meet strict rules and regulations,  then after that it all has to be blessed by a rabi that specializes in kosher parve,things that will never make the grade are meat and dairy products in the same recipie ,anything that comes from an animal with a cloven hoof (swine ) you will never see a kosher cheeseburger even if the meat and the cheese are both kosher ,as one must wait four hours after a dairy meal before you can eat meat ,and you have to wait for eight hours after a meat meal before you can eat dairy ,so if you have roast beef for dinner ,you wont be having ice cream for desert