If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In this game you're making donuts for clients. The client will ask for a drink and for a doughnut of a specific shape and color covered with a topping of a specific type. Make the drink and then select the correct doughnut base and cover it with the correct things. Press the Serve button to serve the doughnut to the client.