Combine soy sauce and honey in a jar or bowl first. Stir until honey is fully dissolved before adding other ingredients.
Add rice vinegar, lime juice, Dijon mustard, grated garlic, grated ginger, and red pepper flakes. Stir to combine.
Pour in the neutral oil and sesame oil. Seal and shake vigorously for 20 seconds, or whisk for 30 seconds until emulsified.
Taste and adjust - add more vinegar for sharpness, honey for sweetness, or soy sauce for saltiness to suit your preference.
Rest for 5 minutes at room temperature before serving. Stir in or top with toasted sesame seeds just before using.