Preheat oven to 350F degrees. Spray an 11x7-inch baking pan with non-stick spray and set aside.
In a large bowl, beat butter and brown sugar, about 2 minutes. Add egg and beat well. Stir in lavender and honey.
In small bowl, combine oats, flour, cinnamon and baking soda. Stir into the butter mixture, until just blended.
Press into the prepared baking pan and bake for 14 - 16 minutes, until edges are lightly browned. Cool on wire rack and cut into 12 bars.