Hey all. It takes an age but you just have to keep cooking each dish to you move up.
All 3 spatulas then graters, then knives, whisks, rolling pins.
You can only get the last 3 sets of measuring spoons when you REACH LEVEL 6, NOT before. trust me it takes forever, and you need 3 star fridge microwave, toaster etc.
One other thing to note when you have competed the marathon and got the spoons only that SIM in that house can use. All other budding Sim cooks have to go through the same process.
And using the Restaurant kitchen does not speed things up. Once you have all you can cook all to get 5 Simoleons. Hope this helps!!!