I have not tried these yet, but they sound interesting:
Sweet Marigold Muffins
*1/2 cup softened butter
*1/2 cup white sugar
*2 large eggs
*1/2 cup of self-raising flour
*1 teaspoon baking powder
*2 tablespoons calendula flower petals
*raw sugar (optional)
1) Put the butter, sugar, eggs, flour, and baking powder in a bowl and mix together until smooth and glossy.
2) Fold in 1.5 tablespoons of calendula flower petals.
3) Pour the mixture into greased muffin tins. Sprinkle a few petals onto each muffin with a little raw sugar.
4) Bake in an oven at 325 degrees Fahrenheit for approximately 25-30 minutes.
Recipe found in:
Jekka McVicar, The Complete Herb Book, pg. 67