01 - Preheat oven to 350°F and line two baking sheets with parchment paper.
02 - Whisk together the flour, baking soda, sea salt, and crushed lavender in a medium bowl. Set aside.
03 - Cream the butter, honey, and sugar in a large bowl until light and fluffy, about 2-3 minutes.
04 - Beat in the egg and vanilla extract until well incorporated.
05 - Gradually mix in the dry ingredients until just combined. Do not overmix.
06 - Gently fold in toasted nuts and puffed rice cereal until evenly distributed.
07 - Scoop tablespoon-sized mounds of dough onto prepared baking sheets, spacing about 2 inches apart.
08 - Bake for 10-12 minutes, until edges are lightly golden and centers are set.
09 - Cool on baking sheets for 2 minutes, then transfer to a wire rack to cool completely.