01 - Preheat oven to 350°F and line two baking sheets with parchment paper.
02 - Whisk together flour, baking soda, sea salt, and crushed lavender in a medium bowl. Set aside.
03 - Beat butter, honey, and sugar in a large bowl until light and fluffy, approximately 2-3 minutes.
04 - Add egg and vanilla extract, beating until fully incorporated.
05 - Gradually blend dry ingredients into wet mixture until just combined. Avoid overmixing.
06 - Gently fold toasted nuts and puffed rice cereal until evenly distributed throughout dough.
07 - Drop tablespoon-sized dough mounds onto prepared baking sheets, leaving 2 inches of space between each.
08 - Bake for 10-12 minutes until edges turn golden brown and centers are set.
09 - Let cookies rest on baking sheets for 2 minutes before transferring to wire rack to cool completely.