Not only do I have a lavender cookbook, I collect recipes where ever I can find them. Here's another favorite. This is adapted from THE LAVENDER COOKBOOK by Sharon Shipley.
LAVENDER BLUEBERRY BANANA BREAD
1/4 lb. (1 stick) unsalted butter, room temperature
2/3 C. sugar
2 large eggs
1 C. all purpose flour
1 C. whole wheat flour
1 Tbsp. dried lavender flower buds, ground in a spice grinder**
1 tsp. baking soda
1/2 tsp. salt
3 large ripe bananas, mashed
1 1/4 C. blueberries, fresh or thawed & drained
1/2 C. walnuts, coarsely chopped
1 tsp. vanilla extract