Poppy seed can become rancid if it is stored for a long period in your cupboard. Stick it in your freezer, and it will keep almost forever.
Scatter a few fresh blueberries or raspberries over slices of this lemony cake.
How many lemons do you need for this recipe? One will be fine. One lemon yields 1 1/2 to 3 teaspoons of grated peel and 2 to 3 tablespoons of juice.