In a small dry skillet over medium-high heat, add in the sesame seeds and toast for 3 to 5 minutes, stirring frequently. Remove from heat when they are lightly golden and let cool.
Using a spice grinder or mortar and pestle, grind up the wild thyme into a powder.
Sift the thyme through a small mesh strainer to filter out large, coarse stems.
Add all of the ingredients into a small bowl and stir to combine.
Store in an airtight container for up to 3 months.
Notes
If you can't get your hands on wild thyme, "regular" dried thyme can be used. 2 tablespoons of the thyme flowers will also equal 2 tablespoons ground up thyme.