First make the buffalo sauce using a saucepan and mixing together rice vinegar, chili powder, smoked paprika, paprika, garlic powder, onion powder, salt, agave, cornstarch, coconut oil, and cayenne if that's what you're into. Stir over medium-low heat until mixed.
Remove from heat, and mix in melted butter.
Preheat oven to 350 and prepare the panko crumbs for coating by putting them in a shallow bowl.
Coat the tempeh strips with the sauce and then gently press them into the panko crumbs to coat.
Place on a lined baking sheet and bake for about 10 minutes, or until the edges of panko start to brown.
Remove from oven and serve immediately with your favourite ranch sauce. The sauce I have depicted above is veganaise with paprika, chive, and a little bit of almond milk.