01 - Preheat oven to 350°F. Line a baking sheet with parchment paper.
02 - Spread sesame seeds on the baking sheet and toast in the oven for 3–4 minutes until golden and fragrant. Remove and set aside.
03 - In a medium saucepan over medium-low heat, combine honey, butter, water, and 1/2 teaspoon sea salt. Heat until butter melts and mixture is smooth.
04 - Add cashews to the saucepan, stirring to coat evenly with the honey mixture.
05 - Spread coated cashews in a single layer on the lined baking sheet.
06 - Bake for 10–12 minutes, stirring halfway through, until cashews are golden and glaze bubbles. Watch carefully to prevent burning.
07 - Remove from oven and immediately sprinkle toasted sesame seeds over the cashews. Stir gently to coat evenly.
08 - Let cool completely on the baking sheet. Cashews will crisp up as they cool. Sprinkle with extra flaky sea salt before serving if desired.