Easy DIY Rat Cookies I made some cookies for the boys today. This recipe is so easy I wanted to share it with you. All you need is baby food and flour (I used spelt wholemeal flour). Mix both together (I used two equal parts) and place it on a baking sheet. I used a freezer bag to dispense. Bake them on low temperature (140°C/ 280°F) for 40-60 minutes (depending on the size of your drops) You can easily add fresh herbs or other ingredients. I added thyme and parsley to the green ones. The boys love them!